Wincanton

Wincanton is a small town in south Somerset, southwest England. The town lies on the A303 road, the main route between London and South West England, and has some light industry. The town has a population of 4,643.

Wincanton is unique in the fact that it was twinned in 2002 with a town from Discworld: Ankh-Morpork.
It is, of course, the location of Bernard Pearson's Discworld Emporium and site of no few events for British Discworld fans.

This has been formally approved by Havelock Vetinari himself in the short story A Few Words From Lord Havelock Vetinari, which has been republished in A Blink of the Screen.