Located in Copley Square at the Copley Square T stop (green line), H.H. Richardson's 19th-century Romanesque Trinity Church was named a National Historic Landmark in 1971, and has earned the American Institute of Architects' distinction of being among the 10 greatest buildings in the country. Trinity Church hosts a guided tour at least once a day and offers self-guided tours throughout the day. Visitors are requested to respect Trinity Church as a place of worship. More Information