Two years later, streetcar service arrived: the Washington and Great Falls Electric Railway connected the neighborhood to Georgetown and Glen Echo.The site is located within Battery Kemble Park, bounded by Chain Bridge Road, MacArthur Boulevard, 49th Street, and Nebraska Avenue, NW.Other notable landmarks making the Palisades unique are the old Conduit Road Schoolhouse on MacArthur Boulevard, Palisades Community Church (1923), The Lab School of Washington (1967) (formerly the Florence Crittenton Home for Unwed Mothers), the German Embassy, St. David's Episcopal Church (1940), Sibley Hospital (1961) and Gen. Montgomery C. Meig's Washington Aqueduct / Dalecarlia Filtration / Water Treatment Plant (1853).Remnants are everywhere of the old Capitol Transit #20 trolley (Union Station to Cabin John) that was a very popular ride through the Palisades out to the Glen Echo Amusement Park (1898–1968).In addition, the Georgetown Branch of the B & O railroad once worked its way through The Palisades, the most notable landmark being the steel trestle bridge over Arizona Ave.Also National Register-listed are: Designed by John J. Zink, the MacArthur Theater, originally a single 1,000 seater that was tri-plexed in 1982, was in use from December 1946 through March 1997.