lobo235 writes to tell us that a new underground data center designed by Sweden's largest ISP is fit for a classic supervillain, complete with greenhouses, waterfalls, German submarine engines, simulated daylight and can withstand a hit from a hydrogen bomb. "'Rather than just concentrating on technical hardware we decided to put humans in focus,' he said. 'Of course, the security, power, cooling, network, etc, are all top notch, but the people designing data centers often (always!) forget about the humans that are supposed to work with the stuff.'"