These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A hand-built folk art installation covered with messages of God's love.

America's most famous piece of self-built architecture.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

One man handcrafts "the best sake made outside of Japan" in a tiny desert town on Route 66.

A self-built castle made by a mysterious man.

The oldest continuously occupied public building in the United States.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

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

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

The home for all things Kool-Aid offers everything except a chance to actually enjoy the drink.

A bedazzled house and crown "jewel" of outsider artist Loy Allen Bowlin.

The home of 1.5 million wood letters for printing is still a functioning workshop.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

Whimsical sculptures dot a woodland path surrounding their creator's old summer cottage.

A bypass decorated with large wooden troll carvings.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A bizarre house filled with an astounding array of collections.

This historic early-20th-century building still boasts some of its original features.

Homestead Cemetery hold the remains of the United States' first known professional tattoo artists.