The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A tourist attraction founded around a slumping cabin.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

Cryptic messages embedded in the New York City sidewalk.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A semi-scholarly approach to sex.

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

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The last bastion of Roman presence north of the Alps looms over a German town.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

A little sculpture with a large wardrobe.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The most beautiful Taco Bell in the world even has surfboard parking.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.