I love these Rube Goldberg machine videos which show chain reaction of moving things. A ball falling down, hitting a bucket, turning a swing, breaking a bottle, releasing a gas, setting something on fire and so on.

Here is one which combines free running aka parcours with a gigantic setup of a machine. You’ll see people being shot at and fired in the air, jumping off roofs, bathed in cold water and gigantic towers falling. Starring the freerunning champion Jason Paul.

Here is the making of: