A conceptual design for a cluster of three mile-high (1610m) megastructures for inclusion in Architectural Design issue “Manmade Modular Megastructures” published by Wiley in 2006. The megastructures herald a call for bold development on a huge and technologically advanced scale, exploiting human endeavour in the face of population explosion, all in contrast to the more common calls for restraint in the built environment.