Each remaining city sits on top of a massive black pedestal that houses the arcane machines generating their life-saving Shining Armor fields. The magical machines and Sparkle batteries only take up a fraction of the pedestal, however. The rest is a vast metal warren of cramped living areas, squalid shops, and enigmatic tunnels known colloquially as the "Underwell". The less fortunate followers of the Church (and most non-pony races), call this area home.
Underwells Across EquestriaEdit
Even though Fillydelphia was destroyed, its underwell is still partially intact, housing a few semi-functional robots and a menagerie of dangerous tundra fauna.