Skip to main content

What is the largest (engineered) physical object dreamed of in science fiction?

I can think of 3 kinds of big.

  • By volume
  • By a linear measure
  • By mass or weight

Bonus points for all three. Extra bonus points for the object being realistic in construction.

Let's add to it that it not be naturally occurring.

DampeS8N
  • 26.5k
  • 8
  • 109
  • 148