Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

In this small Phoenix taxidermy emporium, you can find everything from a squid in a jar to a freeze-dried toad.

The world's largest ginkgo tree contains a hollow so large a man once lived in it for two years.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

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

This quiet park's strange sedimentary spires were named after Kodak's color film.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

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.

A replica that won't float away.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

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

A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

This abandoned cemetery has a dark past of bodies buried over bodies.

The Midwestern United States' tribute to Michelangelo is a foam statue sprayed with gaudy gold paint.

The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

A local scoured more than 1,000 acres for stone to create his masterpiece.

What else would you call a playground hidden in Alabama's oldest and largest cemetery?

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.