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

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

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

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

This private home is famous for appearing in the cult-classic "Twin Peaks" series.

The tiny church offers succor to travelers driving by, but only eight at a time.

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

A stunning landscape of bunkers that once stored chemical weapons.

One of the longest water bridges in the world was built over a supposedly haunted swamp in Louisiana.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

This painted blacktop brings the classic arcade game to life.

This ghost town was once a cult-like religious utopian settlement.

Residents of Fremont in Seattle have considered it the center of the universe since the 1970s.

A vinyl-lover's Shangri-La.

One of the only cooperatively owned bars in the nation wears its eclectic history on its walls.

The first park built over a freeway is a brutalist masterwork.

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

A "sinister, whimsical, tacky, and really orange" public art installation hidden under a Seattle bridge.

A tiny plaque hidden miles into the Washington wilderness is all that remains to honor a shipwreck that left 18 people dead.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

This working class sculpture pounds his hammer all the livelong day.

A famous hotel houses an impression collection of mini dioramas and giant doll houses.