Ancient Aliens: Secrets of the Serpeant Mound (Season 9) | History

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More!

There are geoglyphs around the world that Ancient Astronaut Theorists believe could have encoded alien messages in this clip from Season 9, Episode 13, "Beyond Nazca". #AncientAliens

Find out more about the show and watch full episodes on our site:

Check out exclusive HISTORY content:

HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.

[HISTORY]

Tune in to Alien Invasion Week on History starting Monday 9/30 through Friday 10/4 for new Ancient Aliens, plus the premiere of In Search Of, new UFO Specials and More!

[buggyvon]

I live about an hour away from this place and I just visited, definitely worth it to actually see it in real life!

[allenviado]

Erich: "...Someone is trying to communicate with us and we are too STUPID to understand"

Ancient Astronaut Theorist: YES

[dennisdelgado]

4:28 "but we are too stupid to understand the communication" -humans in general🙄

[demienramos]

"We are just to stupid"
Too ignorant to understand"
That man is a scientific savage 🤣

[realbruhlizard]

I have crippling depression
Ancient Alien Astronaut Theorist says yes

[munkymittens]

"The smithsonian institute has investigated"

*instantly knows it'll be covered up *

[jimbojimbob]

Stopped there a couple weeks ago. Very interesting place. From Wilmington oh it was about a 45 minute drive to the south I believe.

[siriusstarlight]

LMAO
“Someone is trying to communicate with us and we are TO STUPID to understand”

I❤️ this guy!
I would correct it to we are slowly communicating.
SOME of us are trying very hard everyday anyways.
😇🙏👽♾🌟

[samsoncrosswood]

This is something else.

Ask questions.
Answer those questions with more questions.
Acknowledge that those questions lead to even more questions.
Don’t answer questions, but give answers in the form of questions.
Ask more questions.
The end.

[sageohio]

The serpent mound is not in pleasant hill ohio, it's in peebles ohio

[unclequack]

I seen a crop circle being made, I seen a ball of light fly around in circles and that was it.

[econtrolable]

I grew up just north of Dayton. Never ever heard of it until I moved away and just found out about it 3 years ago. I never wanted to go back to Ohio until now. I hope to go this year for the solstice.

[demonkane]

1:50 gotta a catchy name for this one ? “”RODAN THE FIRE DEMON”

[naveenscaddy]

In the end you are questioning us, saying wat are they trying to Tel 😂😂

[shoeshinegirl]

Great video about crop circles! Thanks for showing the serpent in the very beginning of the video.

[StargateTraveler]

and i quote.. Somebody is trying to communicate with us, and we are to (stupid) to understand the communication....Cuz we are too busy playing with are phones

[jimhamman]

The meaning of this effigy is the consumption of the egg-shaped island of creation by the plumed serpent (Quetzalcoatl). We call this the story of Altlantis (Aztlan).

[FreeAsABeast]

Could the serpent mount be the location where Lucifer fell like a bolt of lightning as the Bible describes. Ancient Astronaut Theorist say YES

[HeadBangerBoogie]

In the narrator's Voice
People have admitted that they created crop circles as a prank. But ancient astronaut theorists say "Horseshit. That sounds like something an alien would say."