See Manhattanhenge Tonight at Sunset
Summary: New York, center of the world, is so important it gets its own astronomical event. Tonight at 8:20pm is Manhattanhenge, when the setting sun aligns with the Manhattan street grid, so that from any city block, it seems to sit on the horizon neatly in the middle of the road. (It looks especially grand on main streets like 14th, 34th, and 42nd.) This happens twice a year, on two dates straddling the equinox (in 2017 that’s May 30 and July 12).