The wooden airship was the largest flying boat ever built.

10,000 flowered plants bloom in the City of Roses.

A sculpture of a salmon swimming through a brick building.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

Six peaceful acres in a residential neighborhood dedicated to art and peace.

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

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

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

The second tallest railway trestle bridge in America.

While it is not equipped to peer into outer space this observatory looks like it was built on the moon.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

A beautiful 62-acre Catholic shrine and botanical garden.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

Home to the deepest rift anywhere on Earth.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

There aren't too many operational funiculars around, but Pittsburgh has two!

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The remains of a century-old mansion that met a fiery demise years after it was deserted.

A winding, cliffside stretch of road overlooking the Delaware River.

The highest point in Washington state is a volcano covered in glaciers.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

No two pieces are exactly the same at Portland's hippo-themed hardware store.