This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A posh members-only club with a literally dramatic history.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Legend says this sacred tree was a gift from goddess Athena.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

Giant marble phalluses on the sacred island of antiquity.

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

Giftshop catering to cryptozoologists and anyone with a sense of humor.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

This unacceptably tall building was the real reason for Washington, D.C.'s skyscraper ban.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

Tucked away in a corner of a Maine general store there was a museum devoted to an equally beloved and reviled local soft drink.

This 19th century granite fortification is one of the most well preserved forts in New England.

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

Walk the same tracks that once ferried Gilded Age aristocrats to their vacation destinations.