Locales of Ravnica

--Planet--
Ravnica is what is known as an ecumenopolis - a world-sized city. Every part of it is populated and urbanized. A good portion of the populace belong to one of the ten guilds that operate almost all of the essential services for the city. Those who choose not to join a guild will still feel the effects of their influence in their daily lives. A while ago, the guilds had signed a Guildpact, designed to magically uphold the laws of the plane and keep the guilds from interfering with each other. With the reveal of House Dimir, the guildpact was broken. While the guilds have not descended into all-out war, they will often scuffle and butt heads. A counter-guild movement known as the Gateless was also responsible for forcing many guild reforms in the interests of the people.
The Centre of Ravnica is the only part where natural rock still touches sky. A flattened mountaintop that houses the Forum of Azor and the Transguild Promenade encircling it, the mountain beneath has long since been mined down into a hollow column with its base extending to the Undercity, where the more poorly financed guilds reside.

--Guild Locales--
Azorius Senate
├ New Prahv
├ Chancery Hall
├ Forum of Azor
└ Old Prahv Ruins
Orzhov Syndicate
├ Irbitov, Mausoleum District -> Slate Street
├ Orzhova, the Church of Deals
├ Vizkopa Bank
└ Coiner's Row
House Dimir
├ Dinrova Tower
├ Bane Alley
├ Nightveil
├ Old Rav Aqueducts
└ Duskmantle, House of Shadow
Izzet League
├ The Boilerworks -> Izzet Steam Maze
├ Mizzium Foundry
├ Blistercoil Generator Stations
└ Nivix, Aerie of the Firemind
Cult of Rakdos
├ Rix Maadi, Dungeon Palace
├ Wihnlot -> Festival Grounds
├ Club Carnarium
└ Hellhole Mines
Golgari Swarm
├ Korozda, Maze of Decay
├ Grand Ossuary
├ Stonefare Tunnels
├ Deadbridge
├ Zanikev, the Great Rot Farm
└ Grigor's Canyon
Gruul Clans
├ Skarrg, the Rage Pits
├ Titan's Keg Tavern
└ The Rubblebelt -> Utvara Reclamation Zone
Boros Legion
├ League of Wojek Precinct Offices
├ Sunhome, Fortress of the Legion (Army HQ)
├ Kamen Fortress (Rakdos Unit)
├ Zelzo Base (Dimir Unit)
└ Horizon Military Academy
Selesnya Conclave
├ Loft Gardens
├ The Ivory Oaks
├ Sumala, the Topiary Grove
├ The Grand Concourse
└ Vitu-Ghazi, the City Tree
Simic Combine
├ Helical Stair (Zonot Five)
├ Zameck, of Zonot Seven
└ Zonot ("One" through "Nine")

--Guildless Locales--
*Leyline Roads*
├ Court Street (Azorius - Boros)
├ Sage's Row (Orzhov - Simic)
├ Shadow Alley (Dimir - Gruul)
├ Foundry Street (Izzet - Rakdos)
└ Ivy Lane (Golgari - Azorius)
*Gate Crossings*
├ Sunspire Sanctuary (Boros - Orzhov)
├ Opal Lake (Azorius - Dimir)
├ Ubul Sar Sluiceway (Selesnya - Golgari)
├ Kilnspire District (aka The Smelt Ward) (Gruul - Boros)
│ └ Tin Street Market
└ Saruli Parkland (Promenade - Selesnya)
*Other Notable Places*
Agyrem, the Ghost Quarter
Ovitzia, The Mansion District
Axebane Forest
Oak Street Inn
Skygames Raceway
"The First Vineyard" Tavern
Ismeri Library
Transguild Promenade