Last week, a World War II bomb was uncovered in the center of Munich. The German government evacuated 3,000 residents in case the 500-pound, decades-old bomb accidentally went off.
After the evacuation was complete, specialists went to work diffusing the bomb and protecting the surrounding area. Once they were confident they could do it safely, they had a controlled detonation. The explosion shattered windows near the site and set roofs ablaze. But thanks to careful planning, the bomb didn't claim any lives.
Though it's been 70 years since the end of WWII, these bombs still lurk under sleepy hamlets and in the middle of cities. Over the course of the war, the Allies dropped two million tons of bombs on Germany; it should come as no surprise that some of those might still be alive and undiscovered.