Oregon's unexpected high desert, displaying layers of time in a colorful show.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

An abandoned saucer-shaped monument in the Bulgarian mountains.

St. Augustine's record-setting narrow street was designed to protect against pirates.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

This museum started as a collection of Manhattan Projects and continues to add exhibits as they are declassified.

A serene garden path lined with 36 haiku stamped into clay stones.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Nuclear reactor created the plutonium used on Nagasaki.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

One of the world's largest tanks mimics the experience of watching rare whale sharks, giant rays, and deep sea creatures from the ocean floor.

The world's largest drain sits below the city of Kasukabe, Japan.

Hot springs monkey spa in the middle of Hell's Valley.

This enormous "shamoji" means more to the people of Miyajima than just a way getting rice onto a plate.

Japanese national treasure originally built in 593 CE.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

Peace Park and the Atomic Bomb Dome.

Famously misunderstood wonder of the ancient world

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.