Cycling
The web of bike paths take you to out-of-center spots, and riding from museum to monument will save your feet hours of ache (though you’ll have to lock your bike to a signpost or railings).
For more information on biking in and around DC, get in touch with the Washington Area Bicyclist Association (1-202 518 0524, www.waba.org). A helpful map of DC bike lanes is available on the city’s transportation website, www.ddot.dc.gov.