Lake Tianchi (Heavenly Lake)

What the Show Claims

• ›Ancient Aliens identifies this lake as a hotspot for UFO activity and suggests it may be concealing an alien base. The lake's mysterious properties and frequent UFO sightings are presented as potential evidence of extraterrestrial presence.

What Archaeology Says

Lake Tianchi is a crater lake located in the Changbai Mountains on the China-North Korea border. It is known for its natural beauty and folklore, but there is no scientific evidence supporting claims of UFO activity or alien bases.