A little lift
Remember a while back when we built and reviewed the LEGO Technic Crawler Crane? At the time, we were impressed the model's size and how much it could lift. However, we'd yet to see this MOC by builder Dawid Szmandra who created a 1:24 scale model of a Liebherr LR 11000 Crawler Crane; a creation so strong that it can hoist an actual wooden chair.
At 27kg in weight, Dawid's build is not a casual thing at all, and clearly it is being constrained by the height of his living room ceiling. Outside, this thing would be impressively large, and the mere fact that it is able to lift something as heavy as a chair is testament to the designer's skill.
Obviously the set is not available to buy, nor will it be any time soon, but it is great inspiration for what can be achieved by those little plastic rods and bricks.