Cathedral carved out of salt, located a mile below the earth's surface.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

Rare signs of the former Soviet Union in the Caribbean, though not where you'd expect them.

A gallery of underwater art that can be visited by man and fish alike.

This century old flensing port is a remnant of a culture for whom whaling is still legal.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Mountain where Jesus was first tempted by the Devil.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The world's largest wooden structure.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Paris' linguistic guide to the international language of, yes, love.

"In the Dark" Restaurant in Paris offers dinner in complete darkness.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Statue of death tucked in the University of Medicine courtyard.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

Perfume museum and library.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.