According to Official Guinness Records,
The largest Lego® sculpture created to date is a model of the Tower Bridge. A total of 5,805,846 bricks were used in its construction. It measures 44 m (144 ft 4.28 in) in width and 13 m (42 ft 7.81 in) in height. It was built by Land Rover (UK) to reveal the new Discovery at Packington Hall, Solihull, UK, on 28 September 2016It took one year to develop from start to finish and the build itself took seven months. Over 100 people were involved in creating the structure, including a team of 28 dedicated Lego builders
For a complete list of 2016 records, please visit 2016 Guinness Records in United Kingdom.