A castle built for love, and abandoned due to heartbreak.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

New York City's only radical feminist independent bookstore.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Avoid gangster interaction while window-shopping.

An artist's cute bronze subway sculptures belie his violent artistic past.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A natural gas leak provides a flickering flame beneath a waterfall.

Sniff the Titan Arum's rotting flesh.

Ride the subways of yesteryear.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Elevated freight railway turned wildly successful urban park.

"Call for the doctor, call for the nurse... Vote!! said the lady with the alligator purse."

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

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

The massive machine creates cracking displays of indoor lightning.

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.