The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Commonly referred to as the most photographed Victorian home in the United States.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

A lighthouse built to save lives that took quite a few with its treacherous location.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

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

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A sharp bend in a dramatic river canyon cut through red rocks.

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

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

The former home of the "Mother of Father's Day."

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

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

Leave a button on the jacket of this iconic Seattle clown.

A nondescript Seattle restaurant inherited a piece of European history.

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

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

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

The gravestones in this lost burial ground were bulldozed and replaced with houses and a dog park.

A frozen relic of Seattle's hydroelectric boom is now a teaching facility for future engineers.