This is the entrance to Green-Wood Cemetery, a National Historic Landmark in Brooklyn and the final resting place to some famous New Yorkers. It's a beautiful place to visit, especially in the fall when the leaves are changing. More than a century ago it was a big tourist attraction and people used to drive through the wandering paths in their horse-drawn carriages. The entrance is also the roosting place for some exotic birds which escaped from a shipment at Kennedy airport many years ago.
Here you can see some of them. They make quite a noise with their chirping.