The Catacombs

 are a location in Dark Souls.

Adjacent Locations

 * Firelink Shrine
 * Tomb of the Giants

NPCs

 * Patches. Found at the switch next to the second bonfire. Has a mini-event associated with him here (click his link for more information). Only appears prior to giving Andre of Astora the Divine Ember.
 * Vamos can be found here after falling to his location. He will open a shortcut to the valley filled with Bonewheel Skeletons right before the boss.
 * Paladin Leeroy can be summoned as a white phantom. His sign is found on a ledge close to the boss room; can only be reached by falling from above.