TIL the largest cemetery in the world is Wadi-us-Salaam in Iraq. It has 6 million bodies, covers 6.01 km2/2.32 sq mi of land and has been in use for at least 1400 years.
TIL the largest cemetery in the world is Wadi-us-Salaam in Iraq. It has 6 million bodies, covers 6.01 km2/2.32 sq mi of land and has been in use for at least 1400 years.

Wadi-us-Salaam - Wikipedia

Archeologists, ten thousand years from now.
I'm guessing all the skeletons will be a clue.