The world's largest piece of copyrighted artwork.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

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

The first piece of public art dedicated to LGBT rights.

New York City's smallest piece of private property.

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

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Largest Roman Catholic church in North America.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

A former major munitions plant that has been converted into a sprawling art space.

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

The land is home to swimming ponies and a legendary 18th-century treasure.

This statue is dedicated to Grace Sherwood, the last person in Virginia to be convicted of being a witch.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

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

The site of the climactic scene from the classic horror film is now a historic landmark.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

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

Outsider art meets paleontology at this roadside reptile repository.

Built in 1815, the stabilized ruins of the grist mill and sawmill are now gated, but interpretive displays on the features and functions of the mill preserve its history.