By day, the Epic on 31st Street and One Astor Plaza are anonymous office towers. At night, as this new NightSeeing Map makes clear, they’re stars of the skyline. The map makes a spectator sport out of lit-up buildings, pointing out unexpectedly beautiful sights like the domes of the Newtown Creek Wastewater Treatment Plant and the graphically lit ceiling of P.S. 32’s library in the Bronx. Liteson West Soho, 511 Canal St., at Renwick St.; 212-775-6363.