Just steps from the famous crossing point between the two Berlins, the Wall Museum—House at Checkpoint Charlie tells the story of the Wall and, even more riveting, the stories of those who escaped through, under, and over it. The homespun museum reviews the events leading up to the Wall's construction and, with original tools and devices, plus recordings and photographs, shows how East Germans escaped to the West (one of the most ingenious contraptions was a miniature submarine). Exhibits about human rights and paintings interpreting the Wall round out the experience. Come early or late in the day to avoid the multitudes dropped off by tour buses. Monday can be particularly crowded.