The line of Technic brick builds from LEGO includes detailed models of mechanical toys and machines with moving parts like gears and axles and wheels. Beams and pegs, bricks with rows of holes and the pieces that latch into them, are major components of many Technic builds.
LEGO Technic bricks are designed for mechanical builds. Recently LEGO challenged itself to build a 1:1 working car, but not just any machine. They replicated a Bugatti Chiron using LEGO bricks. And since they were building for real, the replica actually drives! Check out this cool...