The Bryn Athyn Historic District, a National Historic Landmark, is home to some of the most remarkable architecture in the Philadelphia area. Bryn Athyn was founded in the late 19th century by members of a Christian denomination known as the New Church, and the buildings in the historic district reflect the religious faith and vision of some of the community's earliest residents. Cairnwood, an 1895 country house in the Beaux-Arts...