The first declared National Monument in the United States.

This recreation of a 19th-century dime museum is full of oddities.

The first of Lancaster's "rural cemeteries."

A diorama of the Civil War, fought by cats.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An Irish Memorial commemorating those who perished due to potato blight.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Yo, Adrian!

The oldest farmer's market in America is so ancient it was approved by the King of England.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

The 28,000-year-old specimen is remarkably intact.

An overlooked memorial honoring the local Washington residents who died in World War I.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Washington's iconic carousel has a nice piece of Civil Rights history.

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

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

A Hawaiian stairway to heaven—that you can't climb.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

This legendary urban waterfall creates a dazzling display of rainbows.

This blowhole is supposedly caused by a trapped monster.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

These ancient sacred grounds granted amnesty to those who managed to reach them.

Watch the newest land on the planet form before your eyes.