Bell Laboratories, 463 West Street – The original home of Bell Laboratories (1925-1960s) and of numerous inventions including the first experimental talking movies, black and white and color television, video telephone, the first commercial broadcast of the New York Philharmonic with Toscanini and a baseball game. Now home to the Westbeth art collective, it is on the National Register of Historic Places and a National Historic Landmark.
African Burial Ground, Duane and African Burial Ground Way (Elk Street) – During excavation at the site of the Foley Square Federal Office Building in 1991, remains were found and the location was later identified as a cemetery for African slaves. Although only 400 remains were discovered, it was determined that between 15-20,000 people were buried there from the 17th century to its closure in 1812. The site has been declared a U.S. National Monument, a U.S. National Historic Landmark and is on the National Register of Historic Places. A visitor center is located at 290 Broadway.
New York Public Library, 42nd Street & Fifth Avenue – One of the best known Beaux-Arts buildings in New York City, the main branch of the New York Public library housed over a million books on 75 miles of shelves when it opened in 1911. It’s also home to Jefferson’s handwritten copy of the Declaration of Independence, Columbus’ letter to King Ferdinand and Queen Isabella and Virginia Woolf’s diaries. Tour hours: 11 a.m. – 2 p.m., Tuesdays to Saturdays. Closed on Sundays and Mondays.
Andrew Carnegie Mansion, 2 E 91st Street at Fifth Avenue, former home of Andrew Carnegie who built it in 1903 and lived there with his wife until his death in 1919. She died there in 1946. Currently, the Cooper-Hewitt National Design Museum, the mansion is on the NY List of Historic Sites and the National Register of Historic Places. Unfortunately, it is closed for renovation until 2013.
Chamber of Commerce Building, 65 Liberty Street – This Beaux-Arts marble building was constructed in 1901 for the Chamber of Commerce for the State of New York. It became the home for the International Commercial Bank of China after the Chamber moved in the 1980s. It is on the National Register of Historic Places, a National Historic Landmark and a NYC Landmark.
Church of the Ascension, 36-38 Fifth Avenue at 10th Street – This Gothic Revival church is well known for its valuable interior artwork. Its architectural design, sculpture, stained glass and artwork landed it on the National Register of Historic Places. It is also a National Historic Landmark.
Will add to this list as I find more.