What is the most complex mechanical machine ever built?

A machine's complexity could mean the number of parts, lines of software code, the complexity of the organization producing the machine, or a combination of these aspects.

Complex machines require a huge engineering and project management effort. Here are some of the largest projects ever attempted by man:

5) F22 Raptor

4) F35 Lightning II Joint Strike Fighter

3) Hubble Telescope

2) Large Hadron Collider

1) Space Shuttle