Washington DC Monuments Bike Tour. See the historical sights of Washington DC with an up-close view of significant monuments on a 3-hour bike tour by comfortable cruiser. Ride an easy route over flat terrain from the National Mall to the Potomac Tidal Basin and view DC landmarks including the Washington Monument, Vietnam Veterans Memorial, Lincoln Memorial and Jefferson Memorial as you explore the attractions with a knowledgeable guide. Snack and bottled water included. Get Special Offer! Washington DC Monuments Bike Tour From $39.99.