Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

In Washington's Yakima Valley lies a town "where dinosaurs roam."

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

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

Site of the greatest known waterfall that ever existed.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

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

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

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

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

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

This medieval village/restaurant perpetually celebrates the year 1376.

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

A short hike into the mountainside forest reveals a decaying 1890s town.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

Rustic natural hot springs in the deciduous rain forest.

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

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.