Southwark

Southwark was a town in London.

The Globe Theatre was built in Southwark. In 1599. The only performance of Love's Labour's Won temporarily brought the Carrionites to Earth with the power of words, but William Shakespeare, aided by the Tenth Doctor and Martha Jones, devised his own words to send them back. (TV: The Shakespeare Code)

Richard Lazarus was from Southwark. During the London Blitz, he hid in the crypts of the Southwark Cathedral.

In 1996, 7-year-old Amelia Pond visited the Pandorica (containing her adult self) at the National Museum in Southwark. Her two incarnations were rescued from Daleks by her future husband Rory Williams' Auton incarnation, their future daughter River Song, and future son-in-law, the Eleventh Doctor who thereuupon launched himself in the Pandorica to re-boot the universe. (TV: The Big Bang)

In 2008, Lazarus presented his rejuvenation device in Southwark. It mutated him into a monster which killed several people. He was defeated by the Tenth Doctor in the Cathedral. (TV: The Lazarus Experiment)

Circa 2020, the Eleventh Doctor and Amy Pond engaged in a heart-to-heart conversation whilst gazing upon upon the Southwark skyline at night, from across the Thames at the Tower of London. (TV: The Power of Three)

Behind the scenes
According to non-narrative information in the DWBIT Dalek vs Cybermen Special, in 2007, Southwark was at the forefront in the brief Battle of Canary Wharf between the Cybermen and Daleks. Many casualties and much damage occurred across the streets of Southwark. V. J. Ellison commented on the battle at a later date.