Known mostly for its historic (and moving) military cemetery, Arlington is worth a visit in its own right. It has gallery-filled neighborhoods, a scenic riverfront and an appealing assortment of restaurants and bars. The best feature may be its proximity to the nation's capital, just a short metro ride away.
Allow plenty of time to explore sprawling Arlington National Cemetery. Don't miss the Tomb of the Unknowns, the Kennedy gravesites and the Iwo Jima Memorial. Also onsite is the curious Arlington House, Robert E. Lee's former home and a showcase of grand Virginia architecture. The nearby district of Rosslyn has some worthwhile attractions, including Artisphere, a cultural space that hosts first-rate exhibitions, concerts and dance performances. And for government intrigue, nothing beats a tour of the massive Pentagon (arranged in advance).
For a dose of greenery, stroll or cycle the Potomac Heritage Trail, which runs for hundreds of miles along the shore. When evening arrives, the Clarendon area is the place to be with its buzzing brewpubs, bistros and wine bars.