Sheffield is a city and metropolitan borough in South Yorkshire with a population of approximately 580,000, making it England's fifth-largest city. Famously described as the 'Steel City', Sheffield built its global reputation on cutlery, tool-making and special steels, and the legacy of that industrial past is celebrated at museums such as Kelham Island. Today Sheffield is a modern, green city with two leading universities, a thriving independent cultural scene, outstanding shopping, and immediate access to the Peak District National Park on its doorstep.