Happy Wednesday, Berlin commuters—hope you don’t mind delays caused by leftovers from the 1940s. An unexploded bomb from World War II was found near Berlin’s main train station, causing thousands of commutes to be interrupted as experts tried to decide whether to detonate the bomb or remove it. While the 220-pound bomb is not even remotely the biggest bomb in the Allies’ arsenal, it has the potential to cause serious damage. Experts claim there may be thousands of unexploded bombs in Germany. Three people were killed in 2010 when one unexpectedly detonated.