The document summarizes three colonial churches in Philadelphia: 1. Christ Church was completed in 1744 and had a steeple added 10 years later. Contemporaries praised its elegant yet simple design. 2. Saint Peter's Church was built in 1758 and had an unknown architect. 3. The First Baptist Church in America was constructed in 1774-1775 in Providence, Rhode Island to a design by architect Joseph Brown, making it one of the earliest imposing Baptist church buildings.