Best way to see the Washington DC monuments

The 18-mile Mount Vernon Trail is one of the most popular trails for walkers, runners and cyclists in Washington, D.C. Located just across the Potomac River from D.C. in Virginia, the trail follows the Potomac's Virginia shoreline from Theodore Roosevelt Island (near Rosslyn, VA) to George Washington's Estate located at Mount Vernon. The trail follows the course of the Potomac, linking Fairfax County and Alexandria to Arlington County and major Potomac River bridge crossings into the District of Columbia. The trail offers wonderful views of the Potomac and DC monuments. There are also several points of interest along the way, including George Washington's home at Mount Vernon, Old Town Alexandria, Arlington National Cemetery, and the local's favourite Gravelly Point (at the north end of the National Airport's main runway). This is THE one trail that offers the best views and gives you peace of mind if you're looking for some sanctuary moments. If you are in the DC area, what are you waiting for?