A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

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

The century-old remains of an abandoned farm town in eastern Washington.

Walking by this fence is like strolling along a portal to various fictional worlds.

The second tallest railway trestle bridge in America.

The only surviving piece of a submarine said to be the most decorated vessel in U.S. history.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

A comprehensive collection of bonsai set in a beautiful campus.

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

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

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

This painted blacktop brings the classic arcade game to life.

The first park built over a freeway is a brutalist masterwork.

This medieval village/restaurant perpetually celebrates the year 1376.

Former farm staffed by mental patients is now a public park.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

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

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

An extraordinary mixture of natural beauty and man-made phenomena.

Seattle's super-sized cowboy apparel once belonged to a themed gas station that wrangled in herds of tourists.

Make your reservation to have coffee with some kitties.

Seattle's own bad art museum located inside Cafe Racer.

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

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