A mapping error in the 19th century made loggers think this section of the forest was underwater.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

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

See six states, pickled freaks, rocks, and antiques.

Massive still life just off the highway in Kansas.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

A unique attraction and museum dedicated to exploring iconic roadside structures.

A cannon designed to fire an atomic warhead.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

The quirky collection includes treasures like Elvis' underwear, Bob Barker's toothbrush, and hundreds of sock monkeys.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

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

A house carved into a rock in the 1940s.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

One of the world's largest Tesla coils.

A gigantic sculpture garden is packed with innovative oddities.