The English city of CHESTER is a walled city located in the county of Cheshire. It is one of the best preserved walled cities in England and is known for its Roman walls, medieval buildings, and the River Dee. The city has a long history, having been founded as a Roman fort in the 1st century AD. It was later occupied by the Saxons and Normans, and the city walls were built in the 12th century. Today, CHESTER is a popular tourist destination, with many attractions such as the CHESTER Cathedral, the Roman Amphitheatre, and the Eastgate Clock.