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.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

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

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Inspiration struck on this seat outside the Griffith Park merry-go-round.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

World's first "penitentiary," meant to be humane, drove men insane.

Yo, Adrian!