Age of Mega Structures

The Age of Mega Structures is a term used to describe the proliferation of large construction projects begun in 4100 with the start of the Earth Torus project and is ongoing.

These megastructures can be broadly grouped into four classes - Planetary Toruses, Stellar Toruses, Bridges and Other Structures.

Most planetary toruses are internally divided into four types of regions - "nature" consisting of biomes similar to ones that previously existed on the planet; Agriculture; Cities and Heavy Industry. Not all types of regions are present in every torus, for instance, the Orbi Ring consists almost entirely of habitation and heavy industries.
 * Earth Torus located around Terra,
 * Orbi Ring located around Spqr,
 * Petharia Ring
 * Attika Torus
 * Petra Torus
 * Ulta Torus

Like the planetary toruses, the stellar toruses are internally divided into four types of regions - "nature" consisting of a variety of biomes found on Union Planets; Agriculture; Cities and Heavy Industry.
 * Andromeda Torus
 * Large Magellan Cloud (LMC) Torus

A number of bridges between galaxies have also been initiated.

Lastly, there has been a number of other mega structures proposed and or started since 4100.
 * Arsenal Dyson Sphere[1]

[1] Cancelled in 5050 with the fall of the Kermac Government and the Second Galactic Council.