Doctor Who is built on the story of the Doctor's travels in the TARDIS. Over the course of its 60 years, the series has seen the Doctor and their companions travel to all corners of the universe and visit moments from the past, present and future. On occasion, the Doctor's magnificent time machine has traveled further than even its Time Lord pilot thought possible. More than once, the Doctor has found themselves traveling further than they've ever been before. In the TARDIS, this could mean further into the future, the past or further through physical space than it has been before.
Source：https://www.cbr.com/doctor-who-tardis-furthest-journeys/
