MBB Architects is an architectural design firm based in New York City, known for the preservation and renewal of historical and culturally significant buildings such as St. Patrick's Cathedral, Trinity Church Wall Street, and Park Avenue Synagogue. Founding partners Jeffrey Murphy, Mary Burnham, and Harold Buttrick established the firm as Murphy, Burnham & Buttrick in 1998. Now a women-owned firm, MBB had, as of 2020, approximately 30 employees.

St. Patrick's Cathedral is a Catholic cathedral in the Midtown Manhattan neighborhood of New York City. It is the seat of the Archbishop of New York as well as a parish church. The cathedral occupies a city block bounded by Fifth Avenue, Madison Avenue, 50th Street, and 51st Street, directly across from Rockefeller Center. Designed by James Renwick Jr., it is the largest Gothic Revival Catholic cathedral in North America.