Windblown rock formations in an ancient Roman quarry.

Every equinox this Maya pyramid puts on a spooky ancient light show.

You can cross from one country to another in a single hop on this little bridge.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

Believed to hold the remains of Japan's most infamous fox spirit, this stone is said to kill those who dare approach.

At a Bangkok bistro, one pot of beef stew has been cooking non-stop for more than 45 years.

Just off the road outside Baguio, a gigantic lion's head carved into a mountain greets those driving by.

Banished from town, this local jester concocted a clever return.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A lonely beacon, precariously perched atop a remote sliver of rock.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

The only sea in the world that has no land boundary.

In the 1940s, Italian architect Mario Cavallè built a dozen of these round homes in northern Milan.

Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

Pick up this rock and become an instant legend.

Austria’s oldest brewery makes beer with flaming-hot granite.

In the foothills of the lesser Caucasus, a centuries-old fortress still stands.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

A small house sits between two huge rocks, with its back to the sea.

This amazing 15th-century mural remained hidden in plain sight for centuries.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

This temple contains what might be the world's oldest optical illusion.

The camera-toting gargoyle juts out from the exterior of a Gothic cathedral.