Many ancient civilizations had building skills and scientific knowledge that seems theoretically impossible for their time. Some believe the knowledge was given to them by Earth's original colonists: astronauts from an advanced alien civilization. From the Nazca Lines to the Bermuda Triangle to the lost city of Atlantis, Ancient Mysteries from Around the World provides an alternative theory for some of Earth’s greatest unanswered questions.

Originally released by Smith Productions, 2014. Streaming video file encoded with permission for digital streaming by Infobase on March 28, 2019.

Ancient Astronauts (5:44); --Tiwanaku (4:14); -- Sacsayhuaman and Other Sites (3:19); -- Caribbean Sites (3:22); -- Directed Panspermia (6:07); -- Early Astronomy (3:44); -- Ancient Images of Flight (4:02); -- Ancient Technology (7:19); -- Ancient Spaceships (3:38); -- Abandoned Colonies (4:47); -- Epsilon Bootis (5:12); -- Credits: Ancient Mysteries Around the World (0:46);.