This speakeasy continues the Prohibition-era legacy of Harlem's jazzy Swing Street.

The home of the first American-born saint is one of the only curved buildings in New York.

This curved Manhattan building was built to house the opulence of John D. Rockefeller's oil empire.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A staggering collection of photographs depicting medical, social, and historical change.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

Plot your trip through the city on the sidewalk.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

This slender three-story building has also had several famous residents.

Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

The language and heritage of a nearly forgotten culture can still be explored in this Southern enclave.

Once luxurious, these oceanfront beach homes have been left to succumb to the elements as the beach is slowly washed away.

Dedicated to the history of the health sciences.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Stunningly detailed mosaics in a New York subway station bring life to the Weimaraners of artist William Wegman's work—and to thousands of commutes.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

A replica of a 7th-century church hides in plain sight in the middle of the concrete jungle.