The cardinal directions, set in stone.

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

Stones speckled along Harris Avenue reveal hidden nuggets of the past.

An electrifying collection of gadgets and literature from the 16th through 20th centuries.

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

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

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

Bonsai trees that are up to a thousand years old.

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.

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

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

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

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