London Bridge was a structure that crossed the River Thames.
In the 15th century, it had houses and shops on it, but these were gone by the 20th century. In 1400, it was adorned with the heads of the Duke of Huntingdon and the Duke of Gloucester. Someone had put an apple in the mouth of the latter. (AUDIO: The Doctor's Tale)
In 1605, the Eleventh Doctor retrieved a piece of fuse wire at the bottom of the bridge for Guy Fawkes as part of an errand to gain the trust of the plotters of the Gunpowder Plot. Later, Robert Catesby outlined the final preparations for the plot inside the Duck and Drake. At the same time, Amy Pond and Rory Williams found power rods for Lady Winters' ship on the bridge. (GAME: The Gunpowder Plot)
During the Glorious Revolution in November 1688, the Second Doctor, Jamie McCrimmon and Zoe Heriot passed under the original London Bridge in a boat with King James II. (AUDIO: The Glorious Revolution) His sixth incarnation later reminisced about this incident with Evelyn Smythe while fleeing from a Terravore in 2010. (AUDIO: The Crimes of Thomas Brewster)
The 1814 frost fair stretched from Blackfriars to London Bridge. (TV: Thin Ice) The Doctor arranged a birthday party for River Song under the London Bridge in 1814. Stevie Wonder sang for them. Given his blindness, Wonder was unaware that he had travelled in time. (TV: A Good Man Goes to War)