A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Like Mardi Gras, only everyone's a pirate.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

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

The beloved, war-tested mascot of a Union regiment graces their battlefield monument.

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

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

A former major munitions plant that has been converted into a sprawling art space.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The "lovely red Vega" of the legendary record-settling pilot.

Perhaps the most scandalous statue of America's first president.

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

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

There’s a hidden military meme engraved on the World War II Memorial.

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

Yo, Adrian!

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

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

A winding, cliffside stretch of road overlooking the Delaware River.

Why have you never heard of the second most popular tourist site in New York?

The lost town of Neversink, sunk by New York City.