Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

Once considered the height of medical modernity, this structure is now the oldest remaining component of Roosevelt Hospital.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

Once the largest gravity dam in the world.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

One of the last full-orchestra recording studios in New York City and an acoustical marvel.

The childhood home of the famous general's mother is now a small, walled garden.

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

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

This old-fashioned carhop restaurant gave the world the waffle cone.

The Brigadier General was so afraid of being buried alive that he had a buzzer installed in his mausoleum, just in case he woke up.

West Point’s only monument to a woman veteran stands above an empty grave.

This restored house built from a Sears kit in the 1930s is a physical remnant of FDR's New Deal following the Great Depression.

The sole surviving building from Newgate village, a colonial settlement that was renamed Centreville in 1792 after it was granted town status by the Virginia Assembly.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

The last of Fairfax County's one-room schoolhouses.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

These massive concrete balls were used to mine gold in Virginia.

This unique structure is the only one of its kind in Virginia.

The ruins of a medieval monastery named after a type of tree.

This massive monument has been telling the time for 150 years—at a slight angle.

It was once nicknamed "the most bombed hotel in Europe."

These murals stand as reminders to the troubled history of this Northern Ireland city.