Receiving a Special Mention in Evolo’s 2010 Skyscraper Competition, this underwater skyscraper from Malaysian designer Sarly Ardre Bin Sarkum redefines what it means to be an impossibly large metal tube full of human beings. Decked out with swaying tentacles that collect kinetic energy from the current and its own private forest on top, it is designed not only to have zero environmental impact, but to actually contribute oxygen to the atmosphere at that. As if no one can tell that it’s a thinly-disguised temple for awakening Cthulhu. That is the only logical progression after the reign of George…