Megastructure

A megastructure is an exceptionally large structure. In terms of science fiction, the word is often applied to super massive constructs built on an astronomical scale.

List of Science Fiction Megastructures

• The Rings and the Ark from Halo
• Dyson Spheres
• The Ringworld from Ringworld (also known as a Niven Ring)
• The Death Stars
• The Frontier