An architect's childhood fantasy treehouse made real.

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

A popular rock that acted as a waymarker for American pioneers.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

Haunting and beautiful trees, doomed to die.

A massive sea stack famous for its appearance in The Goonies.

This charmingly homemade amusement park has been growing for 40 years.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

The magic's in the hole!

The highest point in Washington state is a volcano covered in glaciers.

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

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

This bridge provides safe passage for squirrels.

Stroll through a wonderland of stupendous moss-covered trees.

A walk through the historic city center, under the streets of Seattle.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

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

Legends surround an ancient tree trunk riddled with nails for good luck.

Baroque celebration of the end of the Great Plague of Vienna.

A small but immensely extravagant palace built by the "Night King."

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The footprint of a frustrated devil in Munich's Cathedral.

The fairy tale castle of the "fairy-tale king."