Washington DC Capital Sites Bike Tour. Washington, D.C. is full of historical sites and while it’s easy to explore on foot or by bus, this two-wheel tour option gives travelers access to some of the city’s most popular landmarks. Check out the Lincoln Memorial, White House, Supreme Court and the Capitol on this three-hour Capital Sites Bike Tour. Your friendly guide will share plenty of history, facts and city knowledge on this easy bike ride through the nation’s capital. Get Special Offer! Washington DC Capital Sites Bike Tour From $39.99.