https://en.wikipedia.org/wiki/Nazi_archaeology#The_Search_for_Atlantis
In their search to prove the superiority of the Aryan race, the Nazi party began searching the world for archeological evidence that would prove to the rest of the "inferior" world that the German people were not only a superior race, but that they transcended traditional human standards. One archeological exploit made popular by the movie Raiders of the Lost Ark was the search for the Ark of the Covenant. Another, perhaps less known, exploit was their attempt to discover the lost island of Atlantis.
yeah, it's a real mystery why Rogan is surrounded by people who believe in Atlantis.