A trendy boutique hotel with a super-modern decor, the Hotel Zetta is just 9 minutes from Union Square, and very popular with the Millennial travel set. Tech-lovers will be happy, as each room has a smart TV, video-game console, and multiple USB ports, and the whole establishment is eco-friendly, so you don't need to stress about your carbon footprint. The games room off the lobby--complete with ping-pong, shuffleboard, and a 30-ft Plinko wall--is a great way to unwind while you drink beer from their on-site gastropub.