21 March: Dubai Modern Art Museum & Opera House District projects announced.[69] 12 June: Dubai formally launches its bid for World Expo 2020.[70] 30 November: Restoration of 'Union House', where the UAE treaty was signed in 1971, commences.[71] 2013 13 February: $1.5bn Bluewaters Island project announced, to include world's largest Ferris Wheel.[72] 4 March: Sheikh Mohammed establishes the Emirates Literature Foundation, to include the Dubai International Writers' Centre.[73] Al Barsha Police Station built.[74] The Mine (gallery) opens.