Heritage

The Archbishop’s Palace of Seville harbours an important art collection with mostly works by great Renaissance and Baroque artists. However, the authorship of some paintings is unknown, and, in a few cases, there is an interest in discovering the painter due to the quality of the artwork. As a first step for this purpose, a systematic analysis procedure has been established using non-destructive techniques, such as UV photography and IR reflectography, to locate interventions and underpaintings, as well as X-ray fluorescence to identify original pigments and those of later interventions. The study following this established protocol is presented with the example of two paintings by unknown authors. They were made in different centuries representing, consequently, different styles. UV images showed several retouches, while IR reflectography revealed under-drawing and composition corrections (pentimenti). Furthermore, XRF identified the pigments applied in the production of the different colours and tonalities, allowing to characterise the artist’s palette, whose pigments generally agree with the dates when the artworks were produced. This study resulted in valuable information on painting materials and techniques, which will be useful in the search for authorships, among others. Full article

The research presents the results of a survey carried on in Craiova, one of the largest Romanian cities, which contains numerous buildings from the late 19th and early 20th centuries, some of which were reconsolidated and brought back to use, while others are still decaying. The aim was to spatially investigate residents’ perceptions of the built heritage in the historical city center of Craiova based on questionnaires and mapping perceptions using the Emotional GIS (EGIS) methodology proposed by Wang (2021) and the extent to which this heritage could be a valuable asset for cultural tourism. The alteration of function as well as the context for part of the historical area of the city center testify to the musealization of the study area. The large number of buildings included on the heritage list outlines the characteristics of a living open-air museum, capitalizing on the heritage in situ. Full article

Sustaining karst landscape areas in World Heritage Sites under increasing human pressures and climate change is an emerging challenge. Growing evidence has highlighted the transition from traditional government-oriented regulation to the collaborative governance of different stakeholders in governing karst landscape resources. However, the complexity and dynamics of karst landscape policy and stakeholder networks are poorly understood. This study combined a legislative analysis, network analysis, and public survey to explore effective methods of karst landscape conservation in the Guilin World Heritage Site, China. The policy analysis showed that various national laws and local regulations have been enacted in China, but these regulations often focused on individual aspects of karst–human interactions. The network analysis indicated the complexity and relationship of networks in karst World Heritage Site governance at the national, provincial, and municipal scales. The majority of questionnaire respondents (65–89%) reported a medium and high level of karst landscape governance effectiveness. The insights in the present study may be valuable for other karst World Heritage Sites facing complex challenges, especially in developing countries. Full article

Although archaeological excavations have recovered a large number of vessels used to hold perfumes or ointments in ancient Rome, little is known about the chemical composition or origin of the substances they contained. Most available information pertains to ointment and/or cosmetic bases rather than to essences. The discovery in 2019 of an ointment jar (unguentarium) made of rock crystal (quartz) that was sealed with a stopper and contained a solid mass in a Roman tomb in Carmona (Seville, Spain) was a rather unusual finding. This paper reports the results of an archaeometric study of the unguentarium stopper and its contents. Based on them, and on comparisons with commercially available patchouli and nard oil standards, the perfume held in the unguentarium was probably patchouli. To our knowledge, this may be the first time a perfume from Roman times has been identified, which is a major advance in this field. The unguentarium stopper consisted of dolomite, a material also unknown in this type of use, and bitumen was used to seal the unguentarium with the stopper. Full article

Brownfields particularly in old city centers reveal the story of abandonment and concealment, shaping the identity and collective memory of urban areas. Therefore, research and practice must prioritize both reutilization and heritage values. This study centers on the regeneration of historical brownfields in Tehran, the capital of Iran, and assesses public perceptions of redeveloped historical brownfields. Based on their approach to patrimony, the study categorized reclaimed brownfields as interpretive, cultural, or ecological sites. A questionnaire was administered to citizens who visited three sampled sites (n = 385) to collect data. According to the results of principal component analysis (PCA), women preferred the non-economic component, which includes environmental, social, heritage, and aesthetic dimensions, while men and older, highly educated respondents preferred the economic dimension in relation to brownfields. Despite positive attitudes towards brownfield regeneration, environmental and heritage dimensions, especially intangible heritage, are less well-known. However, heritage justifies and determines brownfield redevelopment. Increasing commitment to preserving heritage during brownfield regeneration has a positive effect on the perception of respondents. Full article

In this study, the assessment of uncertainties introduced at different stages of the elemental analysis of archaeological ceramics has been described using the example of the Neolithic pottery sherds from Popovsky Lug (eastern Siberia). To evaluate the uncertainty introduced by sampling due to ceramic heterogeneity, three original sherds were cut into small subsamples. Powdered subsamples (250–350 mg) were analyzed using wavelength-dispersive X-ray fluorescence and inductively coupled plasma mass spectrometry methods, and the variations between analytical results for independent subsamples were compared with the variations introduced during the analytical process (measurement and sample preparation). It was shown that 250–350 mg of ceramic is sufficient to obtain good reproducibility (2–15%) between separate subsamples for most major and trace elements, even for the heterogeneous Neolithic ceramics included in this study. The differing behavior of concentration variations in some elements was explained by measuring the ceramic cross-sections by scanning electron microscopy and micro-X-ray fluorescence spectrometry, as well as by the theoretic modeling of the sampling error. The described workflow can be useful in finding uncertainties in elemental analysis results, which may affect the interpretation of bulk chemical composition in ceramic provenance studies. Full article

Urban architectural heritage and its social manifestations are immersed in dynamics beyond their origin and conservation vision. Contemporary society reinterprets, reconfigures and resignifies it according to its own logics of empowerment. In this context, this article addresses the case of a bridge in the Historic Center of Cuenca (Ecuador) known by the names of Mariano Moreno Bridge, La Escalinata Bridge or Vivas Nos Queremos Bridge. It describes its patrimonial situation in terms of its values and its relationship with gender. Because of its social implications, this study is divided into two parts: a bibliographic analysis of the historical evolution of the monument, followed by a discussion of its heritage status, and the presentation of the design, validation and application of a qualitative tool to determine the values associated with the property. This tool is used in a focus group of actors to analyze the feminist activism developed on the bridge between 2020 and 2022. This research shows how cultural heritage can be known, valued and used from an inclusive perspective and how public space can be subject to processes of resignification. This bridge became a non-place, a forgotten and a meaningless site. However, due to the struggle for the vindication of women’s rights and freedom of expression, it has taken on a new meaning, becoming an integral part of the contemporary collective imaginary, regardless of its uncertain nomenclature. Full article

This research project investigates the potential of 360-panorama tours to improve the situated and contextual interpretation, virtual visitation, and spatial understanding of recorded or simulated built heritage sites. Our chosen case study was the Subiaco Hotel, a significant heritage building designed by Summerhayes Architecture, which we documented using 360-degree photographs and linked with other media to create an interactive 360-panorama tour. Today, 360-degree panorama tours such as Google Street View enable the virtual exploration of heritage sites and historic buildings. They demonstrate limited interaction and immersion across a range of platforms and devices, without the requirement of expensive virtual reality headsets, but typically do not integrate other media to leverage spatially richer ways to communicate the historical developments of architectural interiors and exteriors. The primary goals of this study were to establish a comprehensive step-by-step workflow for creating an interactive tour of a significant heritage site, demonstrate how other media such as text, videos, and 3D models can be linked, gather feedback from cultural heritage professionals, and offer future research directions and development guidelines. Apart from detailing an optimized workflow for developing interactive 360-degree virtual tours for heritage buildings, we also offer guidelines for optimal panoramic tour creation and implementation. Full article

Nowadays, the research in the fields of conservation and restoration is focusing on recording large amounts of data and information in order to obtain highly accurate surveys that include most details of constructions. Documenting and surveying are fundamental activities in achieving the successful preservation of cultural heritage, but also in implementing efficient strengthening interventions of structures. The applications of methods and techniques that link the disciplines of geometrical surveys and structural analyses are still fragmented, and further research is necessary to fully transfer site information into structural models. In this article, the authors propose a methodology with which to link different restoration fields, with the aim of highlighting the strengths and weaknesses of the interoperability between surveys (carried out through detailed restitution from point clouds), heritage building information modeling (HBIM), and structural analyses to connect three different disciplines. The goal is to find a synthesis model that brings together historical and geometric characteristics, but also physical–mechanical properties, for a structural evaluation through a finite element model (FEM). The case study of the Escuela José Mariano Méndez is analyzed, an extremely damaged historical adobe building in Santa Ana, the second largest city of El Salvador; it is considered fundamental to the national economy, particularly after the “coffee boom” in the late 1800s. The site, located near the historic center, is also known as “Antigua Escuela de Artes y Oficios” and embodies the architectural traditions of the region, being built in adobe and stone. Roma Tre University and the Secretaría de Cultura de la Presidencia (SECULTURA) are partners in this research project to document and restore the historical and cultural value of this site. Full article

Early Japanese books, classical humanities resources in Japan, have great historical and cultural value. However, Kuzushi-ji, the old character in early Japanese books, is scratched, faded ink, and lost due to weathering and deterioration over the years. The restoration of deteriorated early Japanese books has tremendous significance in cultural revitalization. In this paper, we introduce augmented identity loss and propose enhanced CycleGAN for deteriorated character restoration, which combines domain discriminators and augmented identity loss. This enhanced CycleGAN makes it possible to restore multiple levels of deterioration in the early Japanese books. It obtains the high readability of the actual deteriorated characters, which is proved by higher structural similarity(SSIM) and accuracy of deep learning models than standard CycleGAN and traditional image processing. In particular, SSIM increases by 8.72%, and the accuracy of ResNet50 for damaged characters improves by 1.1% compared with the competitive CycleGAN. Moreover, we realize the automatic restoration of pages of early Japanese books written about 300 years ago. Full article

The unusual resin from some species of Elaeagia, a genus now found in certain parts of Central America and South America, was probably first utilized by native peoples in Colombia more than a thousand years ago. It became a crucial part of often elaborately decorated objects made in the southwestern city of Pasto in the colonial period, and it has continued to be used there up to the present, in which it is at the core of a local craft tradition. The resin was also utilized for about 300 years by the Inka, mainly to decorate qeros (ceremonial drinking cups). The resin is often referred to as mopa-mopa and, specifically in Colombia, as barniz de Pasto. The botany, chemistry, properties, and analysis of Elaeagia resin are reviewed, along with a brief survey of the history of its use. Full article

The loss of archaeological heritage continues today, because of both natural disasters and human-made actions. Alarmingly, a significant amount of the destruction is perpetrated by looters and illegal excavations. This problem is not a new one. However, it has increased exponentially in recent years, especially in countries which witnessed internal turmoil (i.e., the Arab Spring) but also throughout Europe. Local authorities struggle to provide adequate controls because of a lack of human resources, budget constraints or technological know-how. This paper describes a multimodal documentation and monitoring workflow applied to an archaeological site for which, due to the sensitivity of the topic, no specific details can be publicly disclosed. The techniques used include UAV aerial surveys, image-based modelling, change detection, relief visualization and GIS mapping. Thanks to the analysis of the multitemporal datasets, it was possible to assess the extension and spatial progression of illegal excavation over a two-year period. Full article

Folding screens were very popular in New Spain beginning in the late 16th century. From the second half of the 17th century on, many Chinese and some European lacquer folding screens circulated in New Spain, inspiring the development of Novohispanic lacquer, imitation lacquer, and Chinese-style folding screens. The decorative technique of these Novohispanic folding screens has not been studied, but evidence suggests that some of them were made with techniques that have pre-Columbian roots, others with European lacquer techniques, and others still with paint and varnish adapted to produce a shiny surface resembling that of Asian lacquer. Thus, 18th-century New Spain was the place where there was the widest variety of lacquer folding screens in the world. Hitherto this variety has remained unnoticed, but studying it is essential to understand to what extent the globalization of the taste for lacquer gave rise to innovative solutions in the Americas. Full article

Devotional artworks represent a valuable form of art, as they are evidence of religious worship and the demo-ethno-anthropological, as well as historical-artistic, heritage of a community, which is why they definitely belong to the cultural identity of a geographic area. The Madonna della Croce wall painting is an example of devotional art preserved today in the homonymous church in Triggiano (Bari, Italy). The presented study concerns the characterization of pigments used in the painting. The identification of pictorial materials had the aim of providing a contribution to knowledge about the painting, the history of restorations, and other historical events, and to increase the information about the Apulian painting to better reconstruct the social, cultural, and economic contexts of the region. Through a non-invasive and fast methodological approach, including portable digital microscopy, colorimetry, fibre optic reflectance spectroscopy (FORS), and X-ray fluorescence spectroscopy (XRF); 42 points considered on coloured areas were analysed in situ, and results on pigment identification were achieved. According to the local wall painting tradition, red and yellow ochres, green earth, vine black, massicot, and lead-tin yellow were found. Furthermore, both indigo-woad dye and a mixture of vine black and yellow ochre to obtain a blueish colour on the Virgin’s mantle were highlighted. Full article

This work contributes to the knowledge of historical contexts that have radically mutated over centuries and have lost their original characteristics. In these cases, information techniques and technologies can support the reconstruction of peculiarities in the digital domain and reveal their distinctive traits. This process applies to the architectural complex of Villa Farnesina in Rome, the realization of which involved the collaboration of influential artists from the 16th century; in particular, we focus on the Stables building, which no longer exists and can only be visualized by joining survey data, historiographic data, and metric measurements in digital and virtual assets. Starting from an integrated digital survey project, the paper highlights the potential of the graphic analysis of iconographic-archival and cartographic components for reconstructing a 3D model of the original appearance of the building. Furthermore, the correlation of geometric data and information parameters allows for the construction of a digital model to fulfill the demand for the transmission of interdisciplinary information to portray this jewel of Renaissance Rome to real and virtual tourism consumers. Full article

This study is addressed at the cultural heritage of the UNESCO historical centre of Urbino (Italy) through the focus on a very peculiar building and ornamental carbonate porous (spongy) stone also found in the opus quadratum Roman dry walls. For these rocks, the mathematician and historian Bernardino Baldi (16th century AD) and the mineralogist Francesco Rodolico (middle of the 20th century AD) introduced, respectively, the popular terms of Tufo spugnoso or Pietra Spugna. Physical observations and stable isotope data (δ¹³C and δ¹⁸O) of these rocks allowed, for the first time, their classification as calcareous tufas, thus contributing to the valorization of the stone heritage of the city. This carbonate lithotype was formed by the chemical precipitation of CaCO₃, driven by the CO₂ degassing of supersaturated calcium-bicarbonate-rich waters, coupled with the passive encrustations of organic material in continental environments. Radiocarbon analyses dated these stones mostly between 9100 and 4700 yr. BP when a maximum growth of these carbonate continental deposits occurred in Mediterranean regions and northern Europe, i.e., during the Holocene Atlantic climatic optimum. Work is still in progress on a perched springline of calcareous tufas found along the Metauro Valley (a few km from Urbino), being good candidates for provenance, at least for those blocks exploited by the Romans and successively reused in the architectural framework of Urbino. Full article

Adobe has been used globally for millennia. In the US Southwest, cultural heritage sites made of adobe materials have lasted hundreds of years in an arid/semi-arid environment. A common prediction across multiple climate change models, however, is that rainfall intensity will increase in the US Southwest. This increased erosivity threatens the long-term protection and preservation of these sites, and thus resource managers are faced with selecting effective conservation practices. For this reason, modeling tools are needed to predict climate change impacts and plan for adaptation strategies. Many existing strategies, including patching damaged areas, building protective caps and shelter coating walls are already commonly utilized. In this study, we modeled adobe block construction, subjected extant walls to a local 100-year return interval rainfall intensity, and tested earthen-coat-based strategies to minimize the deterioration of earthen fabric. Findings from the resultant linear models indicate that the patching of earthen architecture alone will not prevent substantial damage, while un-amended encapsulation coats and caps provide similar, and significantly greater protection than patching. The use of this model will enable local heritage resource managers to better target preservation methods for a return on investment of the material and labor costs, resulting in better preservation overall and the retention of culturally valuable resources. Full article