A tunnel dug through the side of a mountain by hand provides convenient yet death-defying access to a small village in China.

The tallest stationary dunes on Earth also happen to sing.

One of the world's largest ice festivals dazzles visitors for over a month with radiant sculptures and carvings.

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

Why walk on this historical site when you can zoom down instead?

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

These layered sandstone mountains in China look like they are made of pressed crayons.

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

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

Intensely colorful calcite pools in Southern China.

This abandoned fishing settlement may well be the greenest village in the world.

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

About 80% of all U.S. avocados are descendants of Rudolph Hass's glorious tree.

This monster board rode a monster wave to break two world records.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

The most isolated mailbox in America lets desert travelers record their passing.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

This Seattle joint serves food inside an old train car once used by FDR.

An obscure waterfall that looks like something out of a fantasy novel.