Unity Temple is a Unitarian Universalist church in Oak Park, Illinois, and the home of the Unity Temple Unitarian Universalist Congregation. The building has been a United States National Historic Landmark since 1971 and was chosen in a 1991 poll in the magazine, Architectural Record as one of the 100 most significant buildings in the United States of the previous 100 years (Unity Temple was #6). Additionally, Unity Temple was chosen by the American Institute of Architects as one of 17 buildings by Frank Lloyd Wright that should be retained as his architectural contribution to American culture. To accommodate the needs of the congregation, Wright divided the community space from the temple space through a low, middle loggia that could be approached from either side. This was an efficient use of space and kept down on noise between the two main gathering areas: those coming for religious services would be separated via the loggia from those coming for community events. This design was one of Wright's first uses of a bipartite design. The design of Unity Temple represents a leap forward in design for Wright. In recounting his experiences with Unity Temple, he stated that this design was the first time he ever realized that the real heart of a building is its space, not its walls.