Manhattanhenge
Twice every year, an interesting astronomical event occurs in New York: the sun aligns perfectly with the streets (vaguely east-west) of Manhattan’s grid: for two days in May, and two days in July.
I was fortunate enough to be travelling through New York for the July event, and caught this photo on 14th Street, between 2nd and 3rd avenue.
For more info on this curious event, Neil deGrasse Tyson has an interesting writeup on this phenomenon.