A hospital where antique dolls are given new life.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A fifth-century temple improbably built into the side of a cliff.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

Moss and stone turn this waterfall into an otherworldly liquid veil.

The world's largest "Christmas tree" is illuminated by hundreds of lights stretching 2,000 feet up the slope of Mount Ingino.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

The central mosque of this Mali town is entirely built from mud.

The largest tea plantation in Southeast Asia supplies gorgeous vistas alongside tea for the surrounding countries.

Things aren't quite what they seem at this mind-bending museum.

A futuristic, brutalist masterpiece that is also strangely prison-like.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

The Incas turned this ancient Wari aqueduct into an imposing defensive gate.

Supposedly this Ethiopian chapel holds the Ark of the Covenant, guarded by virgins who cannot leave the building.

One man's love of sea life and art has turned his home into a temple of outsider island art.

What remains of the summer palace of King Kamehameha III.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

A true treehouse near Hawai'i Volcanoes National Park.

Watch the newest land on the planet form before your eyes.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

This black shoreline is made up of exploded lava particles.

A Hawaiian stairway to heaven—that you can't climb.