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Frankfurt, Germany, is a city of more than 700,000 people in the west central part of the country.
And more than 60,000 of them will have to leave their homes this weekend because a bomb was found near the center of the city. It's both an explosive and a relic.
This bomb was dropped by a British plane during World War II, but it wasn't discovered until this week, during construction near part of a university.
It's a large explosive, 1.4 tons, capable of leveling a city block. And though police say there's no danger to the public right now, they want the area cleared out on Sunday morning before they start the work of defusing it.
According to America's Smithsonian Institution, half the bombs dropped on Europe during World War II fell on Germany and as much as 10 percent of them never went off. Reconstruction in the country started shortly after the war was over and more than seven decades later, many bombs still turned up in Germany every year.
They're old but dangerous, requiring bomb disposal experts to find, defuse and get them away from the public. The upcoming evacuation in Frankfurt is one of the largest since the war.
