Teotihuacan Pyramid
Located in Mexico City in 1900
and 2022 is post excavation.
The 1900 view must have looked like any random mountain until the excavations and clean up began. Makes you wonder what else could be hidden in plain sight like this...

Fascinating! Isn't this the same place where they found that clapping coincided with frequency.

Kinda like Trumps wall?

I don't know alot about this but I've seen/read enough to find it so interesting!

I used to read up on the sound phenomenon stuff a lot, being a musician it intersts me, it's called archeoacoustics if you are trying to look for more info. You can clap near some cave paintings of animals and it sounds like that animal running through the cave! Cool stuff. I wish more sites werer testing for acoutsic phenomenon.