The Best Episodes of Ancient Aliens

There are so many good episodes of Ancient Aliens, but which ones really stand out? Do you like "Destination Mars" the best, or is "City of the Gods" your favorite episode of Ancient Aliens? To determine once and for all what the best episodes of Ancient Aliens are, let's rank every Ancient Aliens episode from best to worst.

In Ancient Aliens, theories and hypotheses are posited about "ancient astronauts" or the idea that extraterrestrial beings visited ancient Earth and made contact. Historical texts and archeological findings are presented in Ancient Aliens as evidence. Ancient Aliens first aired on March 8, 2009 with a special, and made its official series premiere the following year on April 20. Each episode can be watched without seeing the others, so pick and choose from this list all you want.

Vote up your favorite episodes of Ancient Aliens, and downvote any bad episodes that you really didn't enjoy, despite how much you love the series as a whole. It can be painful to put one Ancient Aliens episode over the other when there are so many good ones, which is why you can vote on however many episodes you like.

Ranked by
  • Alien and the Third Reich
    1

    Alien and the Third Reich

    14 votes
    Season 2 Episode 5: If ancient aliens visited Earth in the remote past, could they have given us advanced technology, past down through human history? And could this technology have helped the Third Reich build mysterious weapons and crafts far beyond the limits of 20th century science?
  • The Alien Architects
    2

    The Alien Architects

    13 votes
    Season 10 Episode 4: Many of the architectural marvels of the ancient world bear striking similarities to one another, even though they were separated by thousands of miles.
  • Circles from the Sky
    3

    Circles from the Sky

    16 votes
    Season 8 Episode 8: Over 10,000 crop circles have been reported worldwide, appearing in 50 different countries, and nearly every continent on Earth.
  • The Returned
    4

    The Returned

    23 votes
    Season 9 Episode 14: Thousands of people from every part of the world have reported being abducted by aliens, including even a world leader.