The meeting of the northwestern corner of Delaware, the northeastern corner of Maryland, and the southern edge of Pennsylvania.

The Home and murder site of the witch of Rehmeyers Hollow.

An outlandish shoe shaped house built by an eccentric millionaire.

The historic home still shows the scars from a little run-in with the British in 1813.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This multi-story wooden waterpark offers homemade thrills.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The early data processor factory founded in Washington for the 1890 U.S. Census went on to become IBM.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.

An overgrown garden stands as a grim marker of an unrealized dream.

The last vestige of a once substantial orchard and farm in the suburbs of Northern Virginia.

One of the few remaining Rosenwald Schools left in Virginia.

On the side of a Virginia highway, a collection of monuments commemorates an 18th-century trek through the Blue Ridge Mountains.

A journey along this trail means indulging in a slice of nostalgia.

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

A secret rendezvous spot where John S. Mosby and his Rangers would meet to divvy up their loot after raids.

These buildings are a poignant reminder of the thousands of horses and mules who passed through this area of the Shenandoah Valley on their way to war.

Remnants of a wall built to separate Black residents of Hall's Hill from a newly built subdivision are a grim reminder of segregation in 20th-century Virginia.

This train station inspired the name of a 1970's rock band and provided the backdrop for their album cover.

This environmental engineering marvel keeps salt water from the Elizabeth River.

The well-preserved remnants of a bridge that once made up a WW1-era military railroad.