Talk about some weird news for your workday, A former Nazi bunker located in Hamburg, Germany, is about to become Europe's largest renewable energy power plant. How could something from an evil person like Hitler be used for good?

According to Treehugger.com, the finished building will not only be a "power plant”, it will also be home to a neighborhood cafe, a panoramic terrace and a museum about both the building and the area. When the plan is finished, it will supply 3,000 homes with heating and 1,000 of those with electricity, cutting 6,600 tons of CO2 per year. The city of Hamburg was awarded the title of European Green Capital 2011 by the European Commission.

Hitler ordered the construction of these bunkers after a raid by the Royal Air Force in Berlin. Eight complexes were built in total: three in Berlin, three in Vienna and two in Hamburg. These bunkers could provide shelter for up to 30,000 people, and there was even a fully-equipped hospital ward inside.

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