King's Landing is the capital of the Seven Kingdoms, and its second largest city after Oldtown. The city was founded on the site where Aegon I (Aegon the Conqueror) landed on the mainland of Westeros from the Targaryen fortress on Dragonstone. What was once only hills and forest became the center of politics, religion, and trade on the continent in its three-hundred year history. The population of King's Landing is estimated around a half million, but swells during times of war when it is flooded with refugees.
The Dragon Pit: /warp dragonpit
Sept of Baelor: /warp baelor
Red Keep: /warp rk
CaptainScribble built a total of 777 houses within its wall. There are approximately 4500+ homes within the walls of city not including the number in it's sprawl