10. There are Catacombs in Green-Wood
Green-Wood Cemetery is visited by an estimated half a million locals and tourists a year. The vast 478 acres is the home to 560,000 deceased who include Civil War veterans, Leonard Bernstein, Boss Tweed, Jean-Michel Basquiat and Samuel Morse. There are 30 vaults in the catacombs at Green-Wood, and, in many cases, one family owns each vault.