Junkyards were places used for the disposal of waste. 76 Totter's Lane, where the First Doctor first encountered companions Ian Chesterton and Barbara Wright, was a junkyard. (TV: "An Unearthly Child") The friends later reminisced about that day, the Doctor saying, "It all began as a mild curiosity in a junkyard, and now it's turned out to be quite a great spirit of adventure, don't you think?" (TV: The Sensorites)
The bubble universe that the Eleventh Doctor once landed in had a TARDIS junkyard, a home to dead TARDISes whose Time Lord masters were lured into the universe by House. The Doctor managed to reconstruct a control console using the parts. (TV: The Doctor's Wife)
