A construction site across Charterhouse Street from the entrance to Smithfield Market in London. The site is part of the ongoing construction of the major new Crossrail railway link due to open in 1918. Smithfield has been a major meat market since the middle ages. It was also the site of many executions, including that of Scotland's hero Sir William Wallace in 1305. In 2015 it was announced that Smithfield Market is to become the new location for the Museum of London, due to open in 2021.