A crumbling hospital from the 1850s on Roosevelt Island.

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

These unusual rooms on wheels are holdovers from the 1960s.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

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

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

The romance of early commercial flight still fills this Art Deco destination.

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

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

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

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

The rogue roots are gradually consuming some of the historic marble grave markers.

This unique historical monument features large concrete spheres designed to resemble fallen stars.

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

The resting place of a Civil War celebrity's amputated limb.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

The Cadillac Ranch for monster truck aficionados.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

Every week, a festive public jam session breaks out in downtown Asheville.

Former villa and estate of James Deering developed to preserve native tropical forests.