Lost Maya city uncovered in Mexican rainforest.

A previously unknown ancient Maya city, named Ocomtun, has been discovered in the jungles of southern Mexico using aerial laser mapping technology. The city includes large pyramid-like buildings, stone columns, three plazas with "imposing buildings," and other structures arranged in almost-concentric circles. It is likely an important center for the peninsula's central lowland region between 250 and 1000 AD. The site probably declined around 800 to 1000 AD, likely due to "ideological and population changes" that led to the collapse of Maya societies in that region by the 10th century.