The ruins of Illinois's first state penitentiary, and former Federal Military Prison, from 1833.

Come for the heirloom-corn whiskey, stay for the wood hats.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

Everything good comes from Uranus

Despite being dead since the 1970s, this Canadian tree is kept upright and intact by adoring locals.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

This small museum is home to some of the oldest and best-preserved dinosaur specimens found in Montana.

Historic site where Native American hunters once trapped and killed buffalo.

The tallest dam in Montana and top 10 in the country.

A sleepy little town that had the greatest landslide in North American history fall on it.

Nestled near the mountains of western Canada resides this behemoth earth mover.

Victory on this battlefield catapulted William Henry Harrison to the presidency in 1840.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A century-old wooden walkway where artists and free spirits have built a funky, countercultural main street.

Experience the pivotal Civil War battle at this interactive museum.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

The fifth geographically in a series of twelve statues commemorating westward expansion in the United States.

Giant trolls run this farm!

A free park where visitors can learn about and collect 440 million-year-old fossils.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Take a dip in the world's largest mineral hot springs pool.

A nearly 200-year-old Catholic mission built to serve the native people of Idaho.