Museum Gardens. Music The Academy of St Olave's, a chamber orchestra which gives concerts in St Olave's Church, Marygate, is one of the music groups that perform regularly in York. A former church, St Margaret's, Walmgate, is the National Centre for Early Music, which hosts concerts, broadcasts, competitions and events including the York Early Music Festival. Students, staff and visiting artists of York St John University music department regularly perform lunchtime concerts in the university chapel. The staff and students of the University of York also perform in the city. Food and drink Each September since 1997, York has held an annual Festival of Food and Drink. The aim of the festival is to spotlight food culture in York and North Yorkshire by promoting local food production. The Festival attracts up to 150,000 visitors over 10 days from all over the country. The Assize of Ale is an annual event in the city where people in medieval costume take part in a pub crawl to raise money for local charities. It has its origins in the 13th century, when an Assize of Bread and Ale was used to regulate the quality of goods. The current version was resurrected in 1990/91 by the then Sheriff of York, Peter Brown, and is led by the Guild of Scriveners.The Knavesmire, home of York Racecourse, plays host to Yorkshire's largest beer festival every September run by York CAMRA – York Beer & Cider Festival. It is housed in a marquee opposite the grandstand of the racecourse in the enclosure and in 2016 offered over 450 real ales and over 100 ciders. A product claimed to be local is York ham, a mild-flavoured ham with delicate pink colouring. It is traditionally served with Madeira Sauce. The ham has been described as a lightly smoked, dry-cured ham that is saltier but milder in flavour than other European dry-cured hams. Folklore has it that the oak construction for York Minster provided the sawdust for smoking the ham. A likely apocryphal story attributes Robert Burrow Atkinson's butchery shop, in Blossom Street, to be the birthplace of the original "York Ham", or at least to have made it famous. Attractions Architecture York Minster, a large Gothic cathedral, dominates the city. York's centre is enclosed by the city's medieval walls, which are a popular walk. These defences are the most complete in England. They have the only walls set on