A few dilapidated structures are all that remain of this deserted former silver mining town.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

One man's ambition created this psychedelic log home.

These giant metal horses graze on a hilltop near the Montana highway.

An architect's childhood fantasy treehouse made real.

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

Former farm staffed by mental patients is now a public park.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

A simple plaque remembers a California island massacre that claimed more than 100 lives.

A vertically floating hemlock controls the waves and weather at Crater Lake.

This strange hill on Old Fort Road where gravity works in reverse has been fascinating locals for years.

A forensic lab dedicated to fighting crimes against wildlife.

Celebrating the transformation of trash into objects of beauty.

The mysterious round rocks of Schooner Gulch.

This whimsical seashell-shaped place of worship was designed to blend into its surroundings.

The largest drain hole in the world.

A huge work of Burning Man-inspired outsider art on the grounds of a California winery.

California's own majestic geyser is powered by a subterranean volcano.

Where the alchemists dream of transmuting base metal into gold was actually achieved.

This museum boasts the ninth-largest collection of insects in North America.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.