This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

A tiny town’s tiny museum with some gigantic residents.

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 whimsical roadside community of little metal people.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A technicolor place of worship for Elevationists.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This 36-foot-tall bronze Lady Liberty holds a real flaming torch.

Underneath this water pump, Annie Sullivan helped Keller speak her first words.

This 880-acre facility is home to a massive collection of vintage motorcycles and cars, as well as a 2.38-mile race course.

The permanent home of a 1960s traveling museum of tiny historical dioramas.

Founded by a man who called himself the greatest hunter alive.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.