Truth is stranger than fiction, or so the saying goes. And if you think massive, underground cities is something confined to fantasy and science fiction, here are several, real locations that humans have made their homes deep beneath the ground over the years.

Sewers tunnels waterways background reference

Underground Hideout Entrance

⁠— The nightmare swirls and churns unending! ⁠—

photobash study

Beneath the bustling streets and historic buildings of Bologna lies a hidden world—an intricate labyrinth of tunnels that stretch out in all directions below…

The following gallery contains Max Qin's concept development art for Assassin's Creed: Revelations and Assassin's Creed III.

Elvington Sewer