Looking for a different experience in Washington, DC? Cross the Potomac River into Virginia and head over to Roosevelt Island. The island is located across the river from DC's Georgetown neighborhood and is a memoral to the nation's 26th president. Roosevelt Island is part of the National Park Service. To get there, head North on the George Washington Parkway from the Memorial or 14th Street Bridges. You can only access the park from the GW Parkway or Mt. Vernon bike trail.