Cultural Heritage Online
An independent international journalistic publication — ISSN 3144-1866. The project began in 1998 and has been online without interruption since 2001; today it is one of the largest independent heritage publications on the web.
About Cultural Heritage Online
Cultural Heritage Online (CHO) is an independent international journalistic publication dedicated to the world’s cultural heritage. It catalogues museums, archaeological sites, historic architecture, gardens and significant collections across Europe, Asia and beyond, with a particular editorial focus on the great turn-of-the-century movements that crossed the continent: Liberty, Art Nouveau, Jugendstil, Secession, Art Déco, Rationalism and Modernism.
The project began in 1998 as an Italian editorial index of cultural heritage, and has been online without interruption since 2001 — one of the longest-standing heritage publications on the web. The full chronology, with the source for every date, is on our history page. Cultural Heritage Online is its international evolution: not a translation of the Italian pages, but a catalogue rebuilt for readers outside Italy, adding the context an international audience looks for — the movements, the links between places, and the reasons a site matters beyond its own borders.
The publication in numbers
Catalogue figures are read from the live database and rounded down; the search-impression figure is a monthly average from Google Search Console, measured 22 October 2026. Re-measured every 15 days.
Credibility & citations
CHO’s heritage records are cited as a reference source across five Wikipedia editions — Italian, English, French, German and Portuguese — in articles ranging from Art Nouveau in Turin to individual monuments and movements. Editorially, CHO has been linked by The Guardian, which cites CHO’s page on the Church of San Tomà in a Venice travel feature; by National Geographic, which links to CHO’s entry on the Punic port of Carthage; and by Hyperallergic, in its guide to Rome’s lesser-known art history sites. The archive draws citations from hundreds of independent referring domains, earned organically over nearly three decades of editorial work.
- Longevity: the project has run since 1998, and it has published online without interruption since 2001 — a rare continuous record in a field where digital archives routinely disappear.
- Independent citations: linked by The Guardian, National Geographic and Hyperallergic; referenced across five Wikipedia language editions and hundreds of external domains.
- Original research: CHO produces data-driven analysis from its own catalogue — see below.
Original research & story leads
CHO publishes original editorial analysis drawn from its catalogue. Current pieces available to journalists — including our working data and methodology, on request:
The Long Tail of World Heritage
A cross-reference of the full UNESCO World Heritage List against a catalogue of 17,000+ places, mapping the transnational, serial and industrial sites that structurally fall out of mainstream coverage. Working data and methodology available to researchers on request.
The Art Nouveau Capitals the Guidebooks Skip
City-by-city analysis of Art Nouveau, Secession, Modernisme and Liberty heritage beyond the canonical six capitals — from Oradea and Subotica to Melilla and Ålesund.
Brand assets
The CHO seal — silver on transparent, 2048×2048 PNG. Please keep clear space around the mark and do not recolour it.
For high-resolution photography, additional logo formats or interview requests, contact us below.
Cultural Heritage Online — OASIS Tech LLC. We respond to press enquiries within two working days.