Ravnica is a vast, worldwide cityscape - a patchwork of grand halls, decrepit slums, ancient ruins, and layer upon layer of stonework structures. Of the world's countless civic centers, one looms large above all others: the City of Ravnica, a metropolis so vast that its name has long since become synonymous with the entire plane. It is here, amid mazes of streets and towering gothic spires, that Ravnica's guilds vie for power and control.
Ravnica is home to many different species and races. In Ravnica, where there are no open areas of wilderness, elves inhabit and protect the high spires and hanging gardens of that vast city. A traveler could spend a lifetime exploring the open-air markets where anything is for sale, the awe-inspiring cathedrals that dominate the horizon, or the gilded museums showcasing archeological finds from Ravnica's ancient past. All walks of life can be found in this city, and there is a sharp contrast between places like the austere and immaculate Azorius Senate and the chaotic slums of the have-nots.
Ravnica's guilds had been openly at war for centuries, each claiming dominion over the others. Then something began to happen that gave the guilds pause: The spirits of the dead were lingering in the world. The guild masters of old agreed to divert their energy toward investigating the phenomenon, leading to the signing of the Guildpact, the ancient accord that established relative peace on the plane. This magically reinforced social contract codified ten guilds, each with a different societal role and function, and each corresponding to a pair of the five colors of mana. The Guildpact kept the peace for ten millennia before it was dissolved by the machinations and power-mongering of the Azorius, Simic, and Dimir guilds.
During the last decades of the Guildpact, the spirits of the dead lingered on Ravnica, creating an ever larger "ghost quarter" called Agyrem. Although only the Izzet suspected this, the phenomenon was caused by temporal-planar damage to the nexus plane of Dominaria. Rips in the planar fabric there caused Ravnica to be temporarily separated from the rest of the Multiverse, thereby trapping the spirits of the dead on the plane.
The ten-thousand-year-old guild culture and division of duties has reasserted itself, and the ten guilds are once again dominant. However, tensions between them are building and rumors of trouble can be heard in both the hallowed guildhalls and rustic taverns of the unguilded citizens.
Geographical Features on Ravnica