The unusual patterns in this rock formation result from two distinct modes of weathering.

The longest living non-clonal organisms on Earth.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.

A stunning landscape of bunkers that once stored chemical weapons.

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

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

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

This famous bridge twisted itself into oblivion, but not for the reason you might think.

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

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

Shoreline strewn with the remains of ghostly fallen trees.

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

This statue and its surrounding plaques tells the story of Ko-kwal-alwoot and the kinship between the Samish people and the sea.

Sleep beneath the big screen at this old-school movie theater.

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

This tranquil park with a spiral viewing tower is an off-the-beaten-path area where renowned people have planted a small grove of trees.

Four-story concrete hotel never opened to customers.

This general store is a one-stop-shop for workers at the Prudhoe Bay oil field.

This gravelly, dangerous highway is the only road in the United States that leads to the Arctic Ocean.

The northernmost truck stop in the United States.