An underwater road considered a possible Atlantis location.

Former villa and estate of James Deering developed to preserve native tropical forests.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Local arts organization founded in a former church.

The final resting place of New Orleans' most famous voodoo priestess.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

"There's nothing there," and other lies the KGB told us.

One of Europe's oldest libraries.

The Guardian of Tallinn.

Red frames showcase remnants of one of New York's original subway stations.

The Uros people live on floating reed islands in lake Titicaca.

Mystic Incan rock piles three miles above sea level.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Now containing the bones of the actual conquistador, instead of someone else.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Recently restored menagerie of Victorian-era beasts.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Read a book next to a Midtown waterfall.

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A marvel of Byzantine engineering under the streets of Istanbul.

1513 Turkish world map, full of European state secrets and snarky commentary.

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

An abandoned quicksilver mining town surrounded by the Big Bend parks.