Parts of the city have been designated a UNESCO World Heritage Site. Many historical structures remain, including a city wall founded in Roman times and rebuilt in the 14th century, the ruins of St Augustine's Abbey and a Norman castle, and perhaps the oldest school in England, The King's School. Modern additions include the University of Kent, Canterbury Christ Church University, the University College for the Creative Arts, the Marlowe Theatre, and the St Lawrence Ground, home to Kent County Cricket Club. The city lies at the heart of the City of Canterbury, a local government district.
Canterbury is a popular tourist destination: consistently one of the most-visited cities in the United Kingdom, the city's economy is heavily reliant upon tourism. There is also a substantial student population, brought about by the presence of three universities. Canterbury is, however, a relatively small city, when compared with other British cities.