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Camera dei Deputati, Italy
Economies and Finances,
Law,
Sociology
SPARQL endpoint describing the activities of the the Italian Chamber of Deputies
Dati Cultura (Italy)
Archaeology and Prehistory,
Architecture and Space Management,
Cultural Heritage and Museology
A linked open data platform by Italy's Ministry of Culture (MiC) providing machine-readable access to the nation's cultural heritage information. Built on the ArCo (Architecture of Knowledge) ontology, it offers standardized, interoperable datasets about cultural sites, events, and artifacts. The platform features SPARQL endpoints, APIs, and downloadable RDF datasets to support applications for citizens, researchers, students, and tourists. Data is published under CC-BY 4.0 license and follows DCAT-AP-IT specifications, enabling interoperability across European cultural data infrastructures.
EHRI - KG
History,
Cultural Heritage and Museology
The EHRI Knowledge Graph (EHRI-KG) is a Linked Open Data (LOD) representation of the EHRI Portal’s metadata about Holocaust-related archival sources. Developed to complement the EHRI Portal, it transforms archival descriptions—such as countries, institutions, collection records, and more—into a semantically enriched, interlinked graph.
Europeana
Cultural Heritage and Museology
Europeana is the EU's cultural heritage platform. It contains metadata about more than 50 million digitised cultural heritage items (from books and paintings to 3D objects and audiovisual material), contributed by more than 3,700 institutions.
GESIS KG
Sociology
The GESIS Knowledge Graph (GESIS KG) is an integrated research knowledge graph that captures and interlinks metadata of scientific resources—such as datasets, publications, variables, and survey instruments—along with entities like authors and social science concepts, from GESIS Search.
Nomisma
Archaeology and Prehistory,
History,
Cultural Heritage and Museology
Nomisma knowledge graph is a Linked Open Data (LOD) resource developed by the American Numismatic Society (ANS) in collaboration with an international community of scholars. It provides stable URIs and a formal RDF ontology for numismatic concepts—such as coins, typologies, mints, and hoards—enabling structured representation of numismatic information and interlinking with external datasets. This knowledge graph supports semantic integration, SPARQL querying, and bulk downloads in multiple RDF serializations, facilitating research, interoperability, and reuse of numismatic data across digital projects and collections.
OpenCitations Meta
Cross Domain
OpenCitations Meta is a bibliographic metadata database for all publications referenced in the OpenCitations Index. It includes key metadata like titles, authors, publication dates, identifiers, publication venues, volume/issue/page numbers, and actors like editors and publishers, along with their persistent identifiers when available.
Polifonia MEETUPS KG
Musicology and Performing Arts
The MEETUPS knowledge graph (Musical Meetups Knowledge Graph, MMKG) is a structured Linked Open Data resource developed in the EU-funded Polifonia project. It encodes evidence of historical encounters and collaborations between people in the European musical world (c. 1800–1945), extracted from tens of thousands of artist biographies using NLP and knowledge engineering. The graph models participants, places, dates, and purposes of musical meetups according to the Meetups Ontology, enabling rich queries about who met whom, where and why, for research, teaching and digital humanities applications via a SPARQL endpoint and web tools.
Polifonia Organs KG
Musicology and Performing Arts
The ORGANS knowledge graph contains data on c. 2000 Dutch organs of historic importance. The data has been extracted from the Dutch ‘Organ Encylopaedia’. It contains information on organs, locations, builders, maintenance and modifications, and stop lists. The knowledge graph uses a temporary vocabulary that will be replaced by the Polifonia Ontology Network in the next version.
SKKG
Art and Art History,
History,
Cultural Heritage and Museology
The SKKG Knowledge Graph represents the diverse collections of the Stiftung für Kunst, Kultur und Geschichte, linking artworks, cultural heritage objects, historical artefacts, and curiosities across themes, periods, and provenance. With a strong focus on Swiss art of the 19th and 20th centuries and everyday European life, it models relationships between objects, historical events, exhibitions, and loans. The KG supports discovery of items in the “Sammlung digital” online catalogue and tracks national and international loans as well as SKKG-funded projects, providing a structured view of one of Switzerland’s largest private collections.
