Most of the stories are set in fictional towns like Castle Rock, Derry, and Jerusalem's Lot, but did you know that many of the stories are set in the same fictional universe?
No joke. One seriously obsessed Stephen King fan has put together a flow chart that shows which characters and events are mentioned in which Stephen King novel (except for The Dark Tower, which will be in the next version of TSKYFC).
This is a seriously cool chart that has already consumed an hour of my time and earned its creator my undying admiration.
You might need to click on it to enlarge it: