|aHuntington Beach, CA :|bTeacher Created Materials,|c.
|a32 p. :|bcol. ill. ;|c23 cm.
|a"Smithsonian" -- Cover.
|aThe Inka Empire's grass suspension bridges were engineering marvels. Learn about the engineering behind them with this e-book that features a hands-on STEAM challenge and details how the engineering design process is used to solve real-world problems.
|aInca architecture|vJuvenile literature.
|aIndian architecture|zPeru|vJuvenile literature.
|aPlant fibers as building materials|zPeru|vJuvenile literature.