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

City Council meetings still happen in this historic building, impeccably preserved on the inside.

Built in 1890, this is the last remaining wooden fire bell tower in the United States.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

A magical sanctuary of mythological statuary.

Stroll through a wonderland of stupendous moss-covered trees.

42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

Shoreline strewn with the remains of ghostly fallen trees.

Bonsai trees that are up to a thousand years old.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

This bridge is haunted by the ghost of a distraught mother.

A royal relic from the time that gambling was accidentally made legal in South Carolina.

The site of the one and only battle of Lord Dunmore's War.

For decades, this waterfall remained hidden because of an artificial dam.

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

Tacoma's historic Beaux-Arts train station is now a federal courthouse featuring large-scale glass sculptures by artist Dale Chihuly.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

One of the first intercontinental ballistic missile sites in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The first declared National Monument in the United States.

An attractive free-plunge waterfall outside Bend in the Deschutes National Forest.

Atop an active stratovolcano, two lakes separated by a narrow strip of land.