The World's Most Super-Designed Data Center: Pionen

Pionen is an underground data center that belongs to the biggest Swedish internet service provider Bahnhof. It is located 30 meters under the granite rocks. It was built in a former bomb shelter, thus it can withstand a direct attack with a hydrogen bomb. Two Maybach MTU diesel engines from a submarine are responsible for backup power supply. Together they produce 1.5 megawatts of power. The