The full-sized Lego car
Raul Oaida built a full-sized car out of half-a-million Lego pieces that actually drives. The 256-cylinder engine is powered by compressed air. Top speed is 20 mph.
This is a stunning and insanely clever achievement. My favorite part, aside from that 256-cylinder engine, is the windshield built out of two dozen tiny Lego windshields. (via devour)