This monument marks the beginning journey of a wounded soldier's leg that ended up almost two states away.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

A diorama of the Civil War, fought by cats.

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

Steepest flood safety railway in the entire world.

A local prank turned town icon.

Yo, Adrian!

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The romance of early commercial flight still fills this Art Deco destination.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

At 207 feet, one of the world's longest continuous escalators.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This little gem of a museum is a hidden jewel filled with prehistoric treasures.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

When an ancient supervolcano erupted, some of Nebraska's prehistoric animals were forever preserved in ash.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

Mark Twain once stopped at this rest station during his journey to Nevada.