This Feb. 28, 2013 photo shows Ford's Theatre in Washington, where President Abraham Lincoln was assassinated on April 14, 1865. There are probably more free things to do in the U.S. capital than nearly any other major city in the world. The most popular museums and the zoo are free, thanks to government funding, as well as the picturesque memorials and monuments. With so many free options, the biggest challenge might be narrowing down what to see. (AP Photo/Alex Brandon)
