Completed assignments on display at Unesco headquarters are Angkor Wat, Celtic civilizations and "El Dorado," meaning pre-Columbian ruins in Peru, Costa Rica, Ecuador and Colombia.

In Peru, a huaquero is a person that digs in ancient pre-Columbian ruins illegally in order to get valuable pieces of artwork, usually destroying the structure.

Peruvian and international cuisine amid spotlit pre-Columbian ruins.

The tourists - two Britons, four Israelis, a Spaniard and a German - had been on a trek to the Lost City, pre-Columbian ruins located deep in the forests leading up the mountain.

In recent years, submerged pre-Columbian ruins have been found in the depths of Lake Atitlan.

Copacabana is surrounded by pre-Columbian ruins of considerable interest.

Like most of the many small towns scattered in the valley, it is a touristic area, with natural attractions such as hills and streams, as well as historical colonial buildings and pre-Columbian ruins.

Tens of thousands of teachers still occupy the central square and the surrounding streets of this colonial town of 265,000, a cultural center and tourist attraction known for its artists and haunting pre-Columbian ruins.

A prominent figure in early photographic expeditions, Charnay photographed pre-Columbian ruins in the Yucatan in 1857.

ESSENTIALLY, foreign travelers are drawn to Mexico for any of four reasons: beaches, pre-Columbian ruins, Spanish colonial architecture or traditional handicrafts.