Fodor's Expert Review Apple Store
New York's flagship Apple Store features a 32-foot-high glass cube that appears to float over its subterranean entrance—or, at least, it normally does, though the store is under renovation until 2020 (and is being supplemented by an adjacent temporary flagship until then). The Apple-obsessed will be happy to know this location (and the future, renovated store) is open 24/7, holidays included. Make an appointment (well in advance) at the Genius Bar if you need tech help. There's also an Apple Store location in SoHo, in a converted historic post office building, as well as a few other branches around the city.