The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Try not to get slimed in Tribeca.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A collection of vehicles across American military history.

The Pentagon sits on a former island that was in Virginia at low tide and D.C. at high tide.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Where pardoned turkeys once spent their all-too-brief final days.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

Dine like an American revolutionary at Colonial Williamsburg.

The U.S. Army's giant warehouse of war art includes Hitler’s watercolors and Norman Rockwell oil paintings.

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

A museum dedicated exclusively to aircraft used in the military.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

This brick-lined pedestrian walkway was once a railway tunnel used during the Civil War.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This sprawling museum holds one man's giant collection of real tanks.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

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

One street divides a single town that stands in two U.S. states.

The eerie ruins of a remote abandoned hamlet said to be founded by the survivors of a shipwreck.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.