This quirky hot springs town known to locals as "T or C" was named after a radio show.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

This is one really big nut.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

A blacklight journey through a celestial art exhibit.

A museum dedicated to the alleged Roswell Incident.

The remains of Abó, Gran Quivera, and Qurai are monuments to the long, complicated history of the Indigenous people of the Southwest.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

The plague quarantine island home to the alleged "Vampire of Venice."

Venice's "Island of the Mad."

In medieval times this small stone seat was used as a bizarre way to punish insolvent debtors.

This old medieval prison tower has been a site of astronomical research for more than 250 years.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

The oldest botanical garden in the world that technically isn't the oldest.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A trading post in the North Pole where children send letters.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

Gorgeous cave resemble a winter wonderland.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.