Only known mainland rookery of the threatened Stellar sea lion.

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

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A six-ton wedding present for the King of the Scots.

270 million year-old forest of stone.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A hotel and restaurant serving as the mecca of kitsch.

An alley covered with 20 years of bubble gum.

Quite simply the largest tree in the world (by volume).

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

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

Largest man-made excavation on earth!

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

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

Home to the deepest rift anywhere on Earth.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

When flour explodes, it's not a pretty sight.

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