Protected from the elements, these Native American rock paintings have survived approximately 250 years.

A nearly abandoned 19th-century town on the Palouse.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

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

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

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

Site of the greatest known waterfall that ever existed.

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

An obscure waterfall that looks like something out of a fantasy novel.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

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

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

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

The small town of Poulsbo in Washington state is the next best thing to the Kingdom of Norway.

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

Stroll through a wonderland of stupendous moss-covered trees.

A giant Troll lurks under one of Seattle's oldest bridges.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.