Museums in Las Vegas hold the answers to the questions people have been asking about nuclear wars for decades. For 70 years, the story of Hiroshima and Nagasaki remain a proof of destructive weapons of war. They remain a tale of two cities wiped out by a powerful atomic bomb. The world has lived in peace since then. However, many people still wonder what a future atomic bomb would be like. With the many advancements in combat weapons, it could be a hundred times deadlier. Learning more about the atomic bomb's past bring better understanding of its future.