stpats March observance, for short March celebration, informally March 17, familiarly March 17 celebration, for short Irish pride day, familiarly Fifth Ave. cathedral Festive "Day," for short Church on Fifth Ave., familiarly Cathedral in NYC, familiarly Cathedral in N.Y.C Cathedral facing New York's Rock Center Tourist attraction on N.Y.C.'s Fifth Ave. Green day? New York cathedral, familiarly Big Apple cathedral, familiarly Tourist attraction on 5th Ave Parade occasion, for short NYC cathedral, familiarly NYC cathedral