A remnant of Korea's colonial past lies forgotten in a hip neighborhood in Seoul.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

South Korea's only sex-themed park.

Secret North Korean passage discovered below the world's most dangerous border.

A theme park made of glass, from the gleaming books on the shelves to the crystal fish in the mirror lake.

A 32-acre fun park dedicated to all things cheese.

Step into a cartoon at this Seoul café that aims to evoke a two-dimensional scene.

South Korea's love of the silly photograph is on full display at this goofy collection of trompe l'oeil paintings.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

"The Reptile Man's" very own roadside zoo features an albino alligator.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Every summer West Seattle experiences a housing bloom.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

This playground sculpture of an icon from the past is dedicated to the children of the future.

This super-sized skillet is a replica of a usable giant pan where a woman once skated on bacon.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

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

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.