Hive City

A Hive City or simply a hive, is a massive arcology, or self-contained city, that is home to millions or even billions of human beings loyal to the Imperium of Man. Hive cities are often found in clusters on the densely populated urban planets known in the Imperial lexicon as Hive Worlds. Hive cities have been built up over thousands of Terran years, in many cases stretching back into the Dark Age of Technology long before the founding of the Imperium. Hive cities are layered constructions of rockcrete and adamantium, comprising thousands of residential and industrial blocks leveraged one atop the other, forming a massive, man-made mountain usually capped by a crown of great spires that stretch thousands of metres into the sky.