Like a well-loved pair of shoes, or those jeans you bought in college and never gave up on, some things become worn out over time. But when that thing is a physical location, eroded away by thousands of years of human activity and deep, rich folklore, what sort of nightmares might we expect to pour in through the hole? There’s only one way to find out.

Written and produced by Aaron Mahnke, with research assistance from Sam Alberty and music by Chad Lawson.