According to Official Guinness Records,
The largest cheese sculpture weighs 691.27 kg (1,524 lb) and was achieved by The Melt (USA) in Hollywood, California, USA, on 18 September 2015.Cheese carver Troy Landwehr created the sculpture of a cheeseburger in honour of National Cheeseburger Day from a 907.2 kg (2,000 lb) block of aged Wisconsin cheddar. The sculpture measures 114.3 cm (45 in) tall by 96.52 cm (38 in) in diameter, and features a separately-attached carved pickle which was not included in the measured weight per the guidelines.
For a complete list of 2015 records, please visit 2015 Guinness Records in United States.