A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

For more than 50 years, an iconic sign has greeted visiting “fudgies” to the Traverse City area.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Former self-sufficient mental institution now a planned community.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Cryptic messages embedded in the New York City sidewalk.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

Alexander Hamilton’s creation caused quite a bit of controversy.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The Boston square dedicated to the dark poet who was born nearby.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

At 207 feet, one of the world's longest continuous escalators.

This elaborate towering structure was once famed for its revolutionary height.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Yo, Adrian!