A community farm in the midst of the Brooklyn concrete.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

The humble fort that saved Washington.

The only surviving sidewalk clock in Brooklyn.

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

A decommissioned military complex that's now a modern industrial park.

One of only two remaining Victorian-era greenhouses in New York.

A modern zoetrope on the New York City subway.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

“Invented in Key West, Perfected in Brooklyn."

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

Ride the subways of yesteryear.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Millions of numbers carved in glass represent the tattoos forced upon victims.

A real plaque marks the spot where a Faulknerian character committed fictional suicide.

This impressive Boston holy house is the American mecca for Christian scientists.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

Statue commemorating the use of ether in anesthesia.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.