A lawn full of retired spacecraft on display at one of NASA's first research labs.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

The 320-year-old tree that greeted General Lafayette and rerouted an interstate highway.

Ship skeletons haunt Baltimore's waterways.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

This abandoned sea fort has become an accidental bird sanctuary.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

The land is home to swimming ponies and a legendary 18th-century treasure.

A priceless collection of the Nation's cryptologic history.

Bizarre Cavern.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

The only working large-scale tea plantation in the United States.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

A replica of where the Last Supper was held.

Dedicated to the history of the health sciences.