Explore ancient mysteries and theories about alien involvement in ancient civilizations, from the Nazca lines to Puma Punku.

One alien hunter believes they have found the motherload of evidence in the hunt for extraterrestrial activity on Earth. A video uploaded to the popular conspiracy theory channel Behind the Scenes ...

The ‘Gardens by the Bay’ are home to 100,000 thriving plants–but for the entire setup to work, the designers had to figure out a way to protect the eerily-designed structures against the strong winds ...