7. Witness a Pizza Wedding

One of the stranger traditions in New York City falls on Pi Day. When March 14 rolls around, head to &pizza to watch six couples get hitched! Since 2015, the D.C.-based pizza chain has been converting its major metropolitan locations (D.C., Manhattan, Baltimore and Philly) into free wedding chapels. “The ampersand stands for connectedness, and what stronger connection is there than that of marriage?,” &pizza explained in a statement.

Aside from free pizza pies, the restaurant will also provide an open bar with beer, wine and champagne, flowers from UrbanStems, cake truffles from Milk Bar, framed wedding photos via Framebridge, and even Lyft rides for the happy couples! Head to the pizza shop to watch it all unfold, and participate in the fun.