Thehighestbuildingconstructedby1975wasSearsRoebuckTowerinChicago.Itis443mtallwith110floors.Ithouses16,500peopleandhas103elevatorsand18escalators.Structuralengineershavecalculatedthatbuildingsupto3kmtallaretechnicallyfeasible.WhyhaveLargeBuildings?Thechief (共 8865 字) [閱讀本文] >>