Step down 1&1, you no longer have the coolest datacentre. That honour now belongs to Bahnhof, at their Pionen datacentre, buried deep in the bedrock below Stockholm in a former nuclear bunker. I don’t know where to start – it uses submarine engines! It has waterfalls! There’s 1,500,000 Watts of cooling! It can withstand a hit from a nuclear missle!

Click the image below to check it out, before my head explodes from the awesomeness.

(via, and more pictures and info at, Royal Pingdom)

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