Video of this mysterious Siberian hole, filmed by a helicopter crew, was uploaded to YouTube earlier this week, and now everyone is speculating about what caused it. The 262-foot hole is located in the Yamal Peninsula in the gas rich section of Northern Siberia, a section of Siberia so remote people actually call it “The End Of the World.” So, what caused the hole? Sound off Twitter with your own theory, using the hashtag SiberiaHole.