If you’re in New York City at 8:19 p.m. today, get your ass to a major cross street (the best ones are 14th, 23rd, 34th, 42nd, and 57th) and you can see the street grid take on astronomical significance. Tonight is Manhattanhenge, where the setting sun lines up exactly with Manhattan’s east-west streets. It’ll be an impressive visual spectacle, and a neat moment of urban harmony with nature.
Manhattanhenge happens twice a year, and you get two nights out of the deal, so don’t worry if you don’t make it there today. Tomorrow you’ll get the full sun lining up with the grid, instead of the top half — meaning that tonight is better for photographs, but tomorrow will be more blinding.