A cheeky name for an observatory visitor's center.

Stroll through a wonderland of stupendous moss-covered trees.

This historic Victorian hotel has a scandalous history of affairs and murder.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

Tour the original street level of Port Angeles, buried underground in 1914.

This dilapidated ship carcass covered in trees is a striking sight.

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

The second tallest railway trestle bridge in America.

Sleep beneath the big screen at this old-school movie theater.

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.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

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

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

Four abandoned towers hidden above the Douglas fir forest in Washington.

A sun-filled museum featuring an ever-rotating collection of classic and exotic cars.

This three-story antique market and curiosity emporium claims to be "the largest singly owned antique shop in the Pacific Northwest."

A whimsical village of unique treehouses resides in a Washington forest.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

This Cold War missile launch site has been abandoned for 40 years.

This 18-foot-tall public art installation is another of sculptor Thomas Dambo's trolls.

An allegedly haunted mansion with a tragic, tawdry past.

A normal, unassuming pedestrian overpass has been the demise of many, many trucks.

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