This Saturday marks the 26th iteration of the Kennedy Center‘s Annual Open House, a community and family-oriented event in which the Center opens the doors to all of its venues and spaces for an afternoon of free performances. As usual, the top level of the building will be home to a book fair tied into the theme of the overall event. This year, the Open House will also serve as the launch to Celebrate Mexico 2010, a festival running through October 1 that celebrates traditional and contemporary Mexican arts.