While the holiday tree at Rockefeller Center seems to get all the attention, the tree at Washington Square Park has some serious holiday spirit as well. The forty-five foot Vermont tree stands south of the arch and is lit up beautifully between the hours of 4pm and 1am. The Washington Square Association, founded in 1906, is one of the city’s oldest community organizations, and invites those with sufficient holiday cheer to sing yuletide carols this Christmas Eve at 5pm. For ninety-three years, this association has sponsored carol singing under the arch, and carolers this year will be joined by the Rob Susman Brass Quartet. The association will helpfully distribute a songbook to the singers but, as they point out, "many will know them by heart."