This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

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

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

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

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

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

Site of the greatest known waterfall that ever existed.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

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

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

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

Come for the speed, leave in love with the desert.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

A cemetery housing wild west legends in South Dakota.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

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

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A popular rock that acted as a waymarker for American pioneers.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

An architect's childhood fantasy treehouse made real.