Ohio's 19th-century communist micro-society.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

The world's largest Our Lady of Guadalupe statue overlooks this Ohio sanctuary.

A monument to the “unrecognized dead” of the tragic 1876 train crash.

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Where dioramas can follow you home.

These pretty kitties killed and ate as many as 135 railway workers.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Every president in history is immortalized in bronze in downtown Rapid City.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

One man's ambition created this psychedelic log home.

At the time of its completion, it was the tallest dam in the world.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.