These unique rock formations were created during the Ice Age.

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

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

What if the Fountain of Youth was actually found in Delaware? One historic coastal town believes it to be true.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

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

The North Carolina grounds are leased in perpetuity to the British Commonwealth for as long as the WWII sailors are buried there.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

Perhaps the oldest vine in North America, this sprawling plant helps make a sweet wine.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

So many migrating birds roost on the bridge, it has a special summer speed limit.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The Cadillac Ranch for monster truck aficionados.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

A daily replay of the experiment that proved the rotation of the Earth.

Yo, Adrian!

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

An echo chamber with a waterfall wrapped around its base at the Embassy of Canada in Washington, D.C.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

Decades before the scandal, this staircase on the river was a literal "water gate."

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