Nature's water park in the Wadi Bani Awf valley is full of pools flanked with cliffs and natural water slides.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The contents of this safe survived a 37-kiloton nuclear bomb.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

A cliff-hanging restaurant.

Because sometimes the most efficient route from A to B isn't a straight line.

The world's tallest bridge is also possibly the most elegant.

This highest bridge in the world spans such a great chasm that it had to be established using rockets.

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

The latest in a series of long glass bridges suspended at terrifying heights.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

At nearly 1,000 feet long, this astonishing glass suspension bridge is one of the longest in the world.

A magical work of architecture where a wind turbine enables monks to levitate.

France's high-tech, future-themed amusement park.

The only working large-scale tea plantation in the United States.

This geothermal hot spring hides beneath a slowly growing mineral dome.

A museum dedicated to the history and exploration of both popular music and science fiction.

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

One of the last Jazz Age "Wonder Theaters" in New York City.