It's known from historical accounts that the shrine was thought to be a "Gate to Hell" in ancient times, a powerful portal from which the flowed the toxic breath of Cerberus, a three-headed dog said ...

This time round that includes the three-headed dog Cerberus, some Greek columns, and references to ‘Tempests, Tornados, Vortexes, and Lava’. Oh, and Lady Gaga is going to be in it as well.