This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

Few other hotels can rival the grandeur of the Castle in the Rockies.

Fossils, railroads, and waterfalls!

This expansive bridge in the Canadian wilderness was originally just built for friends.

The cardinal directions, set in stone.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Shoreline strewn with the remains of ghostly fallen trees.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

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

Stroll through a wonderland of stupendous moss-covered trees.

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

A giant Troll lurks under one of Seattle's oldest bridges.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Oddly shaped rock formation, misassociated with a nearby utopian community.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A house carved into a rock in the 1940s.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.