The Gothic Revival main entrance gate building was designed by
Richard M. Upjohn and built in 1861 with Bellville brownstone.
The gateways feature sculptured groups designed by John M. Moffitt
that depict biblical scenes. The center spire is home to a group
of monk parakeets that are descended from South American birds
that escaped their cages in the 1960s from Idlewild Airport (now JFK)
a few miles to the southeast.