Eco-minded travelers can tour the capital city in an electric roadster, book a treatment at the country's first LEED-certified spa, and shack up at a wind-powered hotel. More
Catch a performance at the Kennedy Center's free Open House Arts Festival, wine and dine, and go undercover at the International Spy Museum. More
It costs absolutely nothing to visit all 14 museums of the Smithsonian Institution. You'll find the best hotel rates on the weekends, when the movers and shakers skip town. Don't be shy about asking f... More
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