Debuting at Farnborough International Airshow, this half-scale Rolls-Royce Trent 1000 jet engine measures close to 2 meters in length and is composed of 152,455 LEGO bricks. It took four master LEGO builders from BrightBricks eight weeks to complete, consists of 160 different LEGO components, and weighs in at just over 675 lbs. [via GeekyGadgets]