Packed with the most amazing painting and sculpture from the early Renaissance to the 19th Century. One of my favorite details is this effortlessly executed dog in Fragonard's "Progress of Love" panel peering out at us with such sincerity - a resounding acquiescence to the forces of nature.
The best way to enjoy Manhattan is from Brooklyn. Transmitter Park offers views without the crowds, and you can pick up coffee-to-go and treats from nearby Ovenly. The India St/Greenpoint Ferry is a 5 minute walk and will take you all the way to the Rockaways in the Summertime.