Category Index of Sites and Monuments

Clive Ruggles's Image Collection
Over a thousand images of archaeological sites in the Americas, Australia, the British Isles, Continental Europe and Polynesia taken by Clive Ruggles of Leicester University.

Radar Images of Earth: Archaeology
Images from space of great archaeological sites like Angkor or Giza, with description, from a joint mission of the United States, German and Italian space agencies.

World Heritage
Elegant site from UNESCO explaining the choice of certain buildings and sites as World Heritage. List with pictures and information available on each.

World Monuments Fund
A New York-based non-profit organization dedicated to preserving and protecting endangered ancient and historic sites around the world. Photographs and descriptions of 100 most endangered sites.