Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

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

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.