The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

This historic patch of real estate offers a glimpse of colonial Boston.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The colonial home of Paul Revere during the American Revolution.

Commemorating the spot where the famous scientist fed his pigeons.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

There must be a pun in this haystack somewhere...

The 28-foot granite map plots the locations of 40 theaters in New York City.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A Manhattan tombstone honors a popular 19th-century heroine, now long forgotten.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This haunting monument honors the victims of 9/11.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

A steel skeleton is all that exists of what is supposed to be a replica of Noah's Ark

This little museum in the town where zombies were born celebrates the living dead.

Pennsylvania's largest cave in Laurel Highlands becomes its first underground state park.

Chase waterfalls, hiking trails and more.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.