One of the largest licensed venues in Wiltshire, MECA is a distinctive space perfectly suited for every type of wedding. Well equipped for receptions up to 600 guests, with our beautiful Art Deco ceiling MECA provides the most glamorous of event backdrops. One of the largest licensed venues in Wiltshire, MECA is a distinctive space perfectly suited for every type of wedding. Well equipped for receptions up to 600 guests, with our beautiful Art Deco ceiling MECA provides the most glamorous of event backdrops.