Gramercy Park Historic District - Just east of Union Square, Gramercy Park is a small, tree-lined residential enclave in the midst of one of the most urban sections of New York City. The historic neighborhood surrounds its namesake -a tranquil, gated park between Park Avenue South and Third Avenue and Avenue between 20th and 21st Streets. Developed in the 1830s to resemble a London square, a key to this famously exclusive park is one of the most sought-after treasures in all the five boroughs. Although Gramercy's green space is only available to the residents of the 39 beautiful townhouses and apartment buildings that sit on the park, the neighborhood surrounding it is host to a thriving art scene, vintage shopping, charming restaurants like Danny Meyer's Maialino in the Gramercy Park Hotel and Pete's Tavern, the oldest continuously operating bar in New York City.