Washington, DC is a great city for visitors. It's easy to get to, served by two major airports, major highways, and trains. The Metro subway system is clean and easy to use. Many of the popular attractions are clustered along the Mall, a long green park that runs through the center of Washington, so it's easy to walk around.
For those who want to ride around in style, the Washington Hilton has an Open-Top Sightseeing Tour Bus stop (see the hotel concierge for more information.)
For more information, including an online Interactive Visitor’s Guide, go to http://washington.org/.