[en] The 600 MeV synchrocyclotron (SC) was the first accelerator designed, built and operated by CERN, in operation from 1957 until 1990. In 2010, after 20 years of radioactive decay, it was decided - rather than undertaking a complete decommissioning - to convert the building into a Visit Point, leaving the accelerator in place. The 'SC project' started with a preliminary phase that achieved a full radiological characterisation of the vault, and in 3 operational phases: 1) the radiological clean up and decommissioning of all obsolete equipment and material, 2) the refurbishment of the building and 3) the design and installation of a visitors' area with a multi-media exhibition. The new SC Visit Point was inaugurated on 19. June 2014 as part of the celebrations of CERN 60. anniversary, and named Historic Site by the European Physical Society. (author)