This monument built by Japanese American immigrants spent decades underground.

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

A natural swimming pool in the middle of the Carite Forest.

The last example of an innovative piece of surveying equipment now stands in its inventor's hometown.

Drift through underground caves on a tube.

An eclectic trailer park retreat in the middle of the California desert.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

A railway, a waterway, and a roadway all in one, suspended over a rushing river.

What started as three small gnomes at the base of a tree has grown into a full-blown gnome home.

Would you spend the night in Japan's deepest train station?

The flow from this waterfall sometimes comes out of springs below its rim.

It took millions of years for these rocks to resemble their mammalian counterparts.

The small town of Poulsbo in Washington state is the next best thing to the Kingdom of Norway.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

Journey inside the bowels of this sperm whale sculpture.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Every summer, the Mendenhall River greenbelt comes alive with an explosion of magenta flowers.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

A marvel of Byzantine engineering under the streets of Istanbul.

Half-drowned wooden stumps and stone blocks are all that remain of a Victorian landing that was destroyed by storms.

The world’s largest underwater sculpture is found just off the coast of Nassau.