Treehouse motel and treehouse-building school.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

This freshwater spring fills with 10,000 gallons of water per minute.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

Unlock the secrets of the conjuring arts.

A (slightly) grownup take on the classic retro arcade.

The beloved home to all publications indie, erotic, and punky.

This 19th-century church is now a popular roller rink.

A unique sculpture park that specializes in the huge and bizarre.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

World's oldest operating science fiction and fantasy club, once home to Ray Bradbury and L. Ron Hubbard.

If New Orleans is the birthplace of the "cocktail," why does their own museum of cocktail memorabilia beg to differ?

This collection of Japanese luck idols beckons visitors with over 2,000 waving paws.

This Seattle store is packed with all sorts of curious creatures and creations.

A cabin completely covered in coffee mugs, where visitors are welcome to leave one of their own—if they can find an empty nail.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

A collection of haunted objects and macabre oddities under one roof.

With the touch of a button, you can read a randomly selected short story.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.