Site of the greatest known waterfall that ever existed.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Nuclear reactor created the plutonium used on Nagasaki.

In Washington's Yakima Valley lies a town "where dinosaurs roam."

Perhaps the world's only gas station inspired by a political scandal.

Over 75 historically themed murals grace the walls of a small Washington city.

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

An extraordinary mixture of natural beauty and man-made phenomena.

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

Not far from Mount Rainer, an iron wonderland claims the landscape.

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

These memorials built by an eccentric bachelor on the side of Interstate 5 cause both wonder and traffic accidents.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

The remains of a former logging boom town, crumbled away in the forest.

A Roman-style column in Oregon hides a spiral staircase inside.

This super-sized skillet is a replica of a usable giant pan where a woman once skated on bacon.

Home of Jake the Alligator Man, the mummified remains of a cigar smoking, cross-dressing celebrity of the Northwestern coast.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

The second tallest railway trestle bridge in America.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

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

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

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