The Liebherr LR 13000 is the most powerful conventional crawler crane in the world. Now you can recreate it at home with this LEGO Technic set. The 2,883-piece set comes with 2 smart hubs and 6 large motors to power the articulated functions, which include tank steering, rotating turntable, luffing jib, winch, and load sensing. It's controlled via the LEGO Connect app, with 24 weight elements providing over two pounds of counterweight. When complete, it stands over 39 in. high, 43 in. long, and 11 in. wide, and runs on 12 AA batteries (not included).