St. Patrick's Cathedral is the Mother Church of the Archdiocese of New York and the seat of the Archbishop. Located on Fifth Avenue, across from Rockefeller Center, the sanctuary is the largest Gothic Catholic cathedral in the US. This international landmark, dedicated in 1879, welcomes more than five million visitors each year. With its 330-foot spires, it is one of the City's most spectacular architectural sights. Inside, it boasts a seating capacity of 2,400, numerous altars and stained glass windows, and a giant organ with 7,855 pipes.