Universe

The Universe is the location of many of the Doctor's adventures. The universe is infinite in space and constantly expanding. (DW: Genesis of the Daleks) It was created roughly 14 billion years ago during the Big Bang and will continue for at least another almost 100 trillion years. (DW: Utopia) Oddly enough, the universe has already passed the point of heat death, but most of the entropy has been vented into E-Space. (DW: Logopolis)

Other Locations

 * Pre-Universe: Before the regular universe, there was another one. Several beings were able to survive that universe's destruction, such as The Beast and the Old Ones.
 * Alternate Universes: There are a variety of Alternate Universe, ranging from similar parallel dimensions (such as Pete's World and Inferno Earth) to unusual pocket dimensions (such as the Land of Fiction or Yssgaroth's Universe).