This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

The oldest Dutch colonial stone house in New York City is a hidden gem on the border of Brooklyn and Queens.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The home of aviation trailblazers, in a remote corner of the big city.

Two community gardens under the elevated subway lines on a very busy commercial strip in Bushwick.

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

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

This New York holdover was built to provide housing for shopgirls and still does not allow men above the lobby.

A strangely angled West Village home is the only monument to an explosion that took the lives of three American revolutionaries.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

One kilometer of thick brass rod laid out before your eyes.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

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

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.

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

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

The artist and New York City icon lived, worked and died in this converted carriage house owned by another iconic artist, Andy Warhol.

Join in a Seance at the Swedenborgian Church.

A posh members-only club with a literally dramatic history.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.