Mali
Old Towns of Djenné
Four archaeological sites in Mali documenting centuries of settlement and urbanism in the Niger River delta, inscribed as…
Typology
Zone
923 places
Tanzania
Olduvai Gorge
A steep-sided ravine cutting through the eastern Serengeti, Olduvai Gorge is the single most important site in the…
Peru
Ollantaytambo
The oldest continuously occupied planned settlement in the Americas — its original Inca street grid and canal system…
Czech Republic
Olomouc
The most important Baroque monument in Central Europe and one of Central Europe’s most underrated historic cities —…
Ethiopia
Omo River
Ethiopia's greatest river outside the Nile Basin, the Omo Valley ranks among the world's most significant sources of…
Campania
Oplontis — La Villa di Poppea: la Più Grande Villa Romana Conservata (UNESCO 1997)
The largest Roman suburban villa ever excavated — 11,000 square metres of rooms, colonnades, and gardens packed around…
France
Oradour-sur-Glane
A martyred village frozen in time: on 10 June 1944, SS soldiers massacred 642 of its inhabitants and…
Mongolia
Orkhon Valley
The cradle of Mongolian and Central Asian nomadic civilization and the location of the largest empire capital ever…
Mongolia
Orkhon Valley Cultural Landscape – Heartland of Eurasian Empires
For over two millennia, the Orkhon valley in central Mongolia served as the symbolic and political heart of…
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