Millennium Square is a modern city square in Sheffield, England. It was created as part of the Heart of the City project that began in 1998 and has become a central feature in Sheffield’s redeveloped city centre. It contains fountains in the shape of steel spheres, recalling Sheffield's past as a centre of the steel making industry, whilst linking with the fountains of the Peace Gardens, as well as Sheaf Square, Hallam Square and Barkers Pool.