The Gustaf Adolph Lutheran Church is set on the east side of Capitol Hill Road, about north of its junction with New Sweden Road. The church is a single-story wood frame structure whose exterior is finished in stucco. Its windows are uniformly Gothic style lancet-arch windows. It has a two-stage square tower, whose second stage houses a belfry with round-arched louvers. The belfry is topped by an octagonal steeple with a cross at the top. An entrance vestibule with gable roof projects from the front facade, with a double-door topped by a lancet-arched stained-glass window. One ell extends southward from the rear of the building, forming Svea Hall, the parish hall, and another smaller one extends east. The interior of the sanctuary is largely white plastered walls, with dark stained pews and painted woodwork. The altar area is separated from the sanctuary by an elliptical carved railing and its rear wall is decorated by a large painting depicting Christ at Gethsemane. The Svea Hall, added in 1912, has pressed metal decorative walls and ceilings. The first Swedish immigrants arrived in the area in 1870, as part of a program by the state to recruit settlers for the remote northern part of the state. These early settlers began Lutheran church services the following year, and in 1874 began planning construction of a church. The main part of the present building was completed in 1880 and dedicated in 1881 as the First Swedish Evangelical Church in Maine. In 1896 it was renamed Gustaf Adolph Lutheran Church after the 17th-century King Gustavus Adolphus of Sweden. The town of New Sweden was incorporated in 1895. The church parsonage was built in 1886, and the church hall was added in 1911-12. The interior of the church underwent major renovations in 1930, at which time the exterior was redone in stucco. The small eastern addition was made in the 1940s. The church received nationwide press coverage in 2003 when sixteen of its parishioners were poisoned, one fatally, by arsenic which had been added to coffee served after a church service. One week later a parishioner committed suicide, leaving a note claiming responsibility for the poisoning and claiming church politics as the reason. Another parishioner died several years later from complications associated with the poisoning.
