Park Street Congregational Church, founded in 1804, is a historic and active congregational church in Downtown Boston, Massachusetts. The Park Street Church is a member of the Conservative Congregational Christian Conference. Typical attendance averages over 2,000 people across all Sunday services. Church membership records are private, but the congregation has over 1,200 members. The church is located at 1 Park Street, at the corner of Tremont Street. History Park Street Church is a stop on Boston's Freedom Trail. The founding of the church is dated to 1804 when the "Religious Improvement Society" began weekly meetings with lectures and prayer. The society organized the church on February 27, 1809. Twenty-six local people, mostly former members of the Old South Meeting House, wanted to create a church with orthodox Trinitarian theology. The church's cornerstone was laid on May 1, 1809, and construction was completed by the end of the year, under the guidance of Peter Banner (architect), Benajah Young (chief mason) and Solomon Willard (woodcarver). Banner took inspiration from several early pattern books, and his design is reminiscent of a London church by Christopher Wren. Park Street church's steeple rises to , and remains a landmark visible from several Boston neighborhoods. The church was the tallest building in the United States from 1810 to 1828. For much of the early 19th century, it was the first landmark travelers saw when approaching Boston. The church is next to the historic Granary Burying Ground and was site of granary building for which the burial grounds was named. The first worship service was held on January 10, 1810. The church became known as "Brimstone Corner", in part because of the fervent missionary character of its preaching, and in part because of the storage of gunpowder during the War of 1812. Park Street Church has a strong tradition of missions, evangelical doctrine, and application of Scripture to social issues, as well as a notable list of firsts. Edward Dorr Griffin (1770–1837) served as the first pastor of the Park Street Church and preached a famous series of Sunday evening sermons attacking the New Divinity. In 1816, Park Street Church joined with Old South Church to form the City Mission Society, a social service society to serve Boston's urban poor. In 1826, Edward Beecher, the brother of Harriet Beecher Stowe and son of Lyman Beecher, a notable abolitionist, became pastor of the church. On July 4, 1829,