Site of the greatest known waterfall that ever existed.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

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

The illuminated falls are a gem in North Cascades National Park.

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

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

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

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

Shoreline strewn with the remains of ghostly fallen trees.

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

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

An ice cream parlor chain that caters to vegans and pinball fans equally.

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

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

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

A colorful architectural gem in Seattle's uniquely modern Central Library.

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

Couple's personal collection of pinball machines turned public pinball museum.

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.

Sasqu(w)atch out!

A public fountain that spouts "health water" from a nearby spring.

Shakespeare has been brought to life in this open air theater for the better part of a century.

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.