The Valley of the Fallen, near Madrid, is an immense and powerful underground monument to the victims of Spain's devastating Civil War. Picasso's famous mural "Guernica" (housed in Madrid's Centro Reina Sofia) depicts the horrific 1937 bombing in the northern Spanish town of Guernica. At http://www.ricksteves.com, you'll find money-saving travel tips, small-group tours, guidebooks, TV shows, radio programs, podcasts, and more on this destination.