Signature Tours provides exceptional tours of Washington DC. 3 hour morning tours, 6 hour all day tours (boat ride on the Potomac River), and 3 hour evening tours 7 days a week. Our experienced guides get off the bus with you and walk around to the memorials, narrating throughout. We provide brand new 2013 buses and exemplary customer service. We are the sister company of Royal Trolley Tours which has been in business for over 12 years! We look forward to having you as our guest!