Avoid long entry lines and see some of the most popular attractions in washington dc on this full day sightseeing tour enjoy priority access to the united states capitol the home of congress and the washington monument where youll be treated to panoramic views from atop its 500 foot 152 meter observation deck view iconic landmarks such as the white house the lincoln memorial and the martin luther king jr memorial and embark on a seasonal 1 hour potomac river cruise your tour also l