Cor: If ever there was an example of strikingly beautiful sustainable architectural design, this is it! Cor is a mixed use 25 storey tower in Miami’s design district costing $25 million to build and due for completion in 2009. Much of the expenditure will go towards the integration of photovoltaic panels, wind turbines and solar hot water generation with the innovative structural design. Cor’s exoskeleton will provide structural integrity, thermal mass for insulation, enclosure for terraces, armatures for turbines, shading for natural cooling and loggias for congregating on the ground. This unique exoskelton will enclose 20,100 square foot of office space, 5,400 square foot of retail units and 113 residential units.