The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

This former coal gasification plant found a curious second life as a popular public park.

A beautiful final resting place for some of the noteworthy deceased.

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

The magic's in the hole!

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

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

This painted blacktop brings the classic arcade game to life.