A grand New York post office that is home to mailman Santas, scraps of postal history, and a pneumatic mail system.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

The mosaic Star of David at the front of this store hints that it's no ordinary Italian grocer.

A museum collection honoring the long history of the FDNY is held in a disused Manhattan fire house.

Little Red Lighthouse under the George Washington Bridge.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The site of Paul Revere's historic two lantern warning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This strangely amalgamated museum explores the history of the Timex clock company as well as archaeology.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

A serene but haunting memorial to protective wetland lost, the absence of which directly damaged the Lower 9th Ward following Hurricane Katrina.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

This fortress was designed to prevent a Nazi invasion but was never used.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

This tiny patch of arid sand sits in one of the greenest states in the United States.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

Iconic rock formations that allow for exploration during high or low tide.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

The strip club's VIP lounge is actually a rare repurposed Futuro House.

The largest freshwater lake in the Florida Keys.

Many of the murals covering this sleepy Florida town hide some sort of intentional error.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

The wooden octagon in which Huckleberry Finn and A Connecticut Yankee were born can still be visited in upstate New York.