This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The taxidermy remains of the most popular pony in children's literature.

Odd outsider art installations surround a Gold Rush-era ghost town.

This spectacular mosque houses the second-largest chandelier in the world.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

These free-roaming horses were once destined to disappear from the land.

In paradise, feral pigs have claimed an island all to themselves.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

Legend has it fairies gathered at the site of this medieval castle.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

The world’s largest underwater sculpture is found just off the coast of Nassau.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

One of the largest cat sanctuaries in North America is considered a "Club Med" for felines.

Years of neglect and nature took a toll on this 19th-century lighthouse.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

A dollhouse full of taxidermy rodents, each one handcrafted and given a sordid past.

Edison's cast-in-place concrete houses were a failure, but way ahead of their time.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

On holy holidays, Israel's second president used this room atop Mount Zion as a refuge to read the Torah.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.