Bizarrely shaped rock formations in northwest Bulgaria come with equally bizarre legends.

The glowing blue Nymphaeum of Emperor Tiberius.

Turning night into day in Victorian-era Austin to thwart a serial killer.

An ancient monastery, a locked room, and a mysterious book heist.

Rabbit Hash is a heaping slice of Americana from another era, with a very peculiar origin behind its unusual name.

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

What once claimed to be the world's tallest single-family wooden structure house.

A strange machine made to evaluate the world economy using water and lots of tubes.

"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.

Things seem to roll, flow and run uphill on this short patch of road near Ariccia, Italy.

The secular incarnation of a religious meditation.

Introducing the Green Fairy to her fawning masses.

This unique collection of lawnmowers includes vintage blueprints and automatic robot mowers.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

A museum in the childhood house of a medical pioneer.

A failed Russian themed village and amusement park in Niigata prefecture.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

An encyclopedic collection of mammal penises.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A comprehensive collection of Pez dispensers.

An ancient iron pillar in Delhi that seems to be rustproof.

The dead gigantic radio tower of Liberia.

A seemingly endless landscape of pure salt stretches far across Bolivia.