A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

The world's largest sticker ball weighs in at a mighty 231 pounds.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

See six states, pickled freaks, rocks, and antiques.

An emporium for the weird, creepy, rare, and just plain gross.

An antiquated German apothecary on Chicago's North Side.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

“Invented in Key West, Perfected in Brooklyn."

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

A popular European tradition makes its way to the states on one of America's most famous bridges.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

Try not to get slimed in Tribeca.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A museum dedicated to the alleged Roswell Incident.

What is the Thing?

A technicolor place of worship for Elevationists.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.

This mysterious series of teeny guerrilla installations sheds a whimsical light on street art in Oakland.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.