Ancient Aliens (2010)

S21E4 The Top Ten Unexplained Technologies

In this episode of Ancient Aliens, a countdown reveals ten of the most incredible and enigmatic technologies throughout history. The journey takes viewers from the enigmatic golden spheres unearthed in Mexico to a revered wooden chest believed to connect with the divine, and an ancient burial site that appears to illustrate an astronaut. Could these extraordinary relics be proof of extraterrestrial encounters?