Kaalann was the capital city of Skaro, homeworld of the Daleks.
City of the Daleks
The Doctor visited Kaalann in an alternate timeline, traveling there from a devastated London in 1963. The Daleks had rebuilt a ruined Kaalann and had altered the timeline using a Time Lord device called the Eye of Time. The Doctor managed to deactivate the Eye, returning the timeline to normal. Kaalann was also returned to normal, becoming ruined, as it was before the Progenitor Daleks found it. (VG: City of the Daleks)
Atmosphere
Due to the Daleks' pollution, 30% of the atmosphere in the area was made up of sulphuric acid. Because of this, the never-ending rainfall over the city is highly acidic. (VG: City of the Daleks)
Buildings
Kaalann contained many different buildings.
City of the Daleks
The Doctor and Amy explored Kaalann in City of the Daleks. They were looking for the device that the the Daleks were using to alter the timeline.
Storerooms
Kaalann had several storerooms with discarded Dalek parts. It was in one of these that the Doctor landed his TARDIS in City of the Daleks. (VG: City of the Daleks)
Factories
Kaalann was used by the Progenitor Daleks as a giant factory. Daleks were produced on a production line. This area was of higher security as it was heavily guarded by Drone and Scientist Daleks. The factories were connected to the other rooms by corridors infested with Varga plants. (VG: City of the Daleks)
Visualiser Room
The Visualiser room was a large room where the Daleks recorded and monitored all Dalek activity across the universe. It was controlled by the Visualiser Eye, a large Dalek Eye on one of the walls. The room was full of large data banks and also contained three consoles. In City of the Daleks, the Doctor had to use these consoles to deactivate the Eye's security beam. (VG: City of the Daleks)
The Supreme Council Chamber
The Sumpreme Council Chamber was where the Dalek Emporer and the Eye of Time were located. The chamber had two levels. The Emporer and the Eye were located on the top level. It was in this room that the Doctor deactivated the Eye and reversed the timeline. (VG: City of the Daleks)
Trivia
- The constant acid rain and orange colouration of the city are similar to the complex on the Space Pirate Homeworld in the video game Metroid Prime 3: Corruption.
Kaalann may be the same city as the Dalek City seen in previous stories.