Home to the organ played at General MacArthur's funeral.

The final home of the most famous horse of the American Civil War.

This "castle" is actually a limestone and quartz formation hidden along a trail.

The hide of Stonewall Jackson's equine sidekick is on display not far from where the ashes of his bones are buried.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

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

An original apothecary from 1792.

Museum houses an impressive display of the origin and artistry from the now-quaint invention's history.

The only tennis court that falls under the jurisdiction of the central bank.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

The "lovely red Vega" of the legendary record-settling pilot.

Housing the National Women's Party since 1929, this historic house is now a monument to the fight for gender equality.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

The first neighborhood to implement the Garden City model in its suburban planning.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

This massive melon is a recreation of a similar gate from the Pan-American Expo.

Haven for steampunks.

A veritable variety of odds and ends.

Some of the best Persian food in New York comes from the front window of an unassuming pizza shop.

A long abandoned hospital building on the outskirts of NYC.

Once the center of food production for this small town.

Once home to the country's most gargantuan ships, this graving dock now waits for people to buy furniture.

On this island, you suck away your garbage via an elaborate pneumatic tube system.

An unassuming island in the middle of the Hudson that hosts campers, including Aleister Crowley.