This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

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

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

A downtown park built on top of unclaimed graves.

A prehistoric rock shelter that's literally in someone's backyard.

A monument to the center of the North American continent may be off by a few miles.

Spectacular views await visitors to this lake.

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

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

The most decorated dog of World War I is preserved in the Smithsonian.

Wisconsin's most celebrated export gets the royal treatment on I-94.

An architect's childhood fantasy treehouse made real.

Half of a waterfall goes into the river while the other half seems to disappear.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

See massive fossils that are over 200 million years old in northeastern Arizona.