The Holocaust Memorial Museum is a living memorial to the more than 11 million victims who perished at the hands of the Nazis before and during World War II. Built in 1993, the permanent exhibition tells the Holocaust's full story through real belongings rescued by survivors and Allied concentration camp liberators, as well as oral histories, films, photographs, music, and artwork created in the camps. (A must-see: the sobering display of thousands of pairs of shoes.) There is also a Children's Wall, a children's exhibit called "Daniel's Story," and rotating temporary exhibits. Designed by Holocaust survivor James Ingo Freed, the architecture is symbolic of the ghettos and concentration camps—notably Auschwitz-Birkenau.