Within the City, the Corporation owns and runs both Smithfield Market and Leadenhall Market. It owns land beyond its boundaries, including open spaces (parks, forests and commons) in and around Greater London, including most of Epping Forest and Hampstead Heath. The Corporation owns Old Spitalfields Market and Billingsgate Fish Market, in the neighbouring London Borough of Tower Hamlets. It owns and helps fund the Old Bailey, the Central Criminal Court for England and Wales, as a gift to the nation, having begun as the City and Middlesex Sessions. The Honourable The Irish Society, a body closely linked with the Corporation, also owns many public spaces in Northern Ireland.