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

This abandoned radar station from the Cold War era now only broadcasts a seriously ominous air of isolation.

Two mermen, eternally spitting into each other's mouths.

The first evidence of some of the Earth's earliest life was found in this fossilized undersea grotto.

A black cat protests the City Guild in Riga's Old Town.

What is the Thing?

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

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

A black and white solution to the Bolivian city's traffic problems.

This grand Spanish-Cuban restaurant has been serving customers for more than a century.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

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

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A 125-meter long "tribute to the Brazilian people."

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This replica of the Greek structure is in the heart of Nashville.

Most-visited and most-photographed slot canyon in the American Southwest.

This amazingly preserved Gold Rush town is a historian's dream.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

Washington's iconic carousel has a nice piece of Civil Rights history.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.