Take the plunge just a few minutes away from the heart of downtown Washington, DC by enjoying the various water sports and activities you can find at Theodore Roosevelt Island. Tackle the Potomac's Great Falls or enjoy some good exercise rowing a canoe or kayak. You can bring your own boat or rent one at Thompson Boat Center or Jack's Boathouse near the Georgetown Waterfront.
The National Archives is the ultimate historical storage unit. Every significant document and tangible piece of history is cataloged and stored here. The site houses everything from the Declaration of Independence, to the Louisiana Purchase, to the Watergate tapes. When you walk in, you'll be struck by the fortuitous, 75-foot rotunda where the most treasured documents are on display. Maps, movies, photographs, texts and more are all here, and you can delve into your own research if you are looking for something in particular.
For a high-flying afternoon with the whole family, head out to the National Air and Space Museum. Part of the Smithsonian group of museums, this venue presents several life-size exhibits and attractions that only make them all the more dramatic. This is the Smithsonian's most visited museum largely due to the dozens of aircraft that are on display that include Lindbergh's aircraft to the Wright Brothers' Flyer and lots more.