Today (May 29) is Manhattenhenge. One of two days every year when sunrise and sunset are exactly aligned with the Manhattan (New York City, New York, USA) street grid. Just a fun fact.
"What will future civilizations think of Manhattan Island when they dig it up and find a carefully laid out network of streets and avenues? Surely the grid would be presumed to have astronomical significance, just as we have found for the pre-historic circle of large vertical rocks known as Stonehenge, in the Salisbury Plain of England. For Stonehenge, the special day is the summer solstice, when the Sun rises in perfect alignment with several of the stones, signaling the change of season." (from Sunset on the Manhattan Grid)