Having the experience of owning and running a coral reef aquarium (and frequenting this particular shop about once a week) - I was sad to hear it closed it's doors. Their reef display tank was always amazing. These pictures were taken from PetCo at Union Square (I also used to go there for my saltwater needs).
Strand is a castle of books. It claims 2.5 million new and used books, across 18 miles of shelves, cared for by 200 employees—so set aside a couple of hours. Plenty of art books and good prices. Get your healthy huff of that old book smell.
Geek out over the massive menu of Belgian beer at Spuyten Duyvil. Relax in the backyard seating and say, "Ooh, I gotta remember this brew," without realizing you probably won't see it again elsewhere. Then cross the street to Fette Sau, a BBQ experience equally well designed because it's owned by the same couple, the Carrolls. Order from their wide selection of meat cuts, served by the pound on butcher paper. The sides shine too, with the best potato salad and best BBQ beans I've ever had.
There’s always something interesting on at The Met, and whether you’ve lived in New York all your life or are visiting for the very first time, you’re guaranteed to see something you haven’t before.