A psychedelic labyrinth on the San Francisco bay.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

World's largest collection of serial killer artwork and other macabre exhibits.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A huge musical instrument played by the ocean.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Continuing the tradition of the dime museum in style.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Rumored to have tormented a family in the late 1960s, this toy now resides in a quiet little oddities shop.

This abandoned five-star hotel is now a five-star urban exploration destination.

Commemoration of a sea voyage gone mysteriously wrong.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

The decaying ruins of Wales' first asylum for the mentally ill.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A monument to the art of slicing people open.

Theater has had many different incarnations but has survived the ravages of time.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

Illegal drag racing two stories beneath Chicago’s streets.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.