A psychedelic labyrinth on the San Francisco bay.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

One extremely determined man's homemade universe.

A museum of the dime museum that features weird entertainments of yesteryear, from feejee mermaids to flea circuses.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

An unassuming house in Wisconsin hides a transient artist’s magnum opus.

Experience the life of an 1800's lumberjack at this interactive museum that is only accessible by railroad.

A restaurant and lodge in northern Wisconsin which served as a clandestine hideout for John Dillinger and featured one of the most famous botched FBI raids in history.

A former barn converted into a massive train diorama.

A theme park attraction designed to turn your children into LARPers.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

Robots, lasers, and whoopee cushions, oh my!

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

Where the line between entertainment and aerospace blurs.

The neighborhood shop is a sort of tiny cactus museum full of exotic specimens you can take home.

A common entry point to the Griffith Observatory trail holds its own wonders.