Share the knowledge!
Key Facts In This Video
Manhattanhenge refers to the two dates a year when the sunset lines up with Manhattan's street grid. 00:27
Manhattanhenge doesn't fall on the equinox because Manhattan's street grid is rotated about 30 degrees from true north. 01:18
For a city to be "hengeable," it needs flat terrain, a clean horizon, and a grid. 03:14