Taiwan’s Chinatrust Bank Headquarters has made quite an investment with its trio of green-roofed towers. Designed the Los Angeles-based NBBJ Architects, the energy efficient towers host scores of green building tech, including passive heating and cooling, vertical atriums, daylight channeling exterior facades and roof-top gardens that insulate and prevent rainwater run-off. The 2.5 million square-foot complex, which recently broke ground for an expected 2012 completion date, are expected to earn the equivalent of a LEED Gold rating for green construction. [via inhabitat]