[jacobolus]

The larger of these are definitely not "lost" (as in, local people who are the descendants of their inhabitants have known exactly where they are, continuously since they were abandoned as places to live a millennium ago), though most of them are in the middle of the jungle.

Southern Mexico and Central America are incredibly beautiful though, and ancient ruins there are fascinating places to visit.

[dreamcompiler]

Tulum for example was never "lost." It sits directly on the coast and it was "found" by Europeans (from a ship!) in 1518. The local Maya people knew exactly where it was.

Today the Maya still live in the area and they support their families by working in the tourist industry.