This stunning triplex penthouse apartment in the ClockTower Building went on the market for US$25 million. Situated in the Dumbo neighbourhood in Brooklyn, New York, the apartment overlooks the Brooklyn Bridge and New York Harbour. The main floor of the apartment has four working clocks housed in 14-foot round windows. At the centre is a glass-walled elevator and a three-storey staircase. This modern apartment has an open design that is ideal for entertaining.