Built by the patriotic residents of Boonsboro in a single day.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

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

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Home to items never before seen by the public.

FDR's Art Deco hospital tower was hopelessly inefficient.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

The trials and tribulations of marking Poe's grave.

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

Walk through the history of American pop culture.

This former asylum for Black Americans is haunted by its history of violence and racism.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

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

The only arched bridge made of stone on the entire Mississippi River.

A terrific purveyor of natural history objects and curios.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Oldest unrestored plantation house in America that is open to the public.

One of the oldest living oak trees in the Southeast.