I’ll come back as an Autobot from Transformers. I’m thinking Fortress Maximus.
While we don’t have an exact height. Best numbers state 2,400 meters high or 7,874 feet. His head transforms into a tall Autobot and that head transforms into a human sized robot (actually it’s a human in an exoskeleton).
Fortress Maximus becomes a city when it transforms.
Since you said what and not who.
I’ll come back as an Autobot from Transformers. I’m thinking Fortress Maximus.
While we don’t have an exact height. Best numbers state 2,400 meters high or 7,874 feet. His head transforms into a tall Autobot and that head transforms into a human sized robot (actually it’s a human in an exoskeleton).
Fortress Maximus becomes a city when it transforms.
What about Unicron, but pre-destruction? He’s basically planet sized.