A city in Wiltshire, England, with a population of approximately 65,000. The cathedral there has the second tallest cathedral spire in Europe, at 404ft. Construction on the cathedral started in 1228, and finished in 1258 minus the spire, which was put on later. It's built on a field on a gravel marsh - allegedly, if it were built a few yards in any other direction, it would have collapsed centuries ago.
Prior to that the city was the Saxon settlement of Old Sarum, about 2 miles north of the current city. This area is a particularly good site for an ancient settlement, close to the sacred sites of Stonehenge and Woodhenge up on Salisbury Plain, yet in a sheltered valley at the confluence of five rivers: the Avon, the Nadder, the Wylye, the Ebble and the Bourne.
Another Salisbury was the capital of Rhodesia, which is now called Zimbabwe.