A dungeon feature is a physical fixture in a dungeon with some kind of interesting use, functionality, or effect. Every one is different, but each adds flavor and interest to the environment.
“A fountain is a dungeon feature found throughout the dungeon. Players may drink from the...Fountain
“Room found on the lowest level of the Gnomish Mines behind a locked door. Requires a gold key to...Wine Cellar
“Vendors (aka Traders or Merchants) are any of the neutral NPC's found throughout the dungeon...Traders
“Bee hives are a destroyable dungeon feature in Wazhack that may generate in the main dungeon or...Bee hive