▁on ▁Sol ov et sky ▁Island . ▁The ▁monaster y ▁is ▁surrounded ▁by ▁massive ▁walls ▁with ▁a ▁height ▁of ▁ 8 ▁to ▁ 1 1 ▁m ▁and ▁a ▁thick ness ▁of ▁ 4 ▁to ▁ 6   m . ▁The ▁wall ▁incorpor ates ▁ 7 ▁gates ▁and ▁ 8 ▁to wers ▁( built ▁in ▁ 1 5 8 4 – 1 5 9 4 ▁by ▁an ▁architect ▁named ▁Tr if on ), ▁made ▁mainly ▁of ▁huge ▁b ould ers ▁up ▁to ▁ 5 ▁m ▁in ▁length . ▁There ▁are ▁also ▁religious ▁buildings ▁on ▁the ▁monaster y ' s ▁grounds ▁with ▁the ▁principal ▁structures ▁inter connected ▁with ▁roof ed ▁and ▁arch ed ▁pass ages . ▁They ▁are ▁in ▁turn ▁surrounded ▁by ▁multiple ▁household ▁buildings ▁and ▁living ▁qu arters , ▁including ▁a ▁ref ect ory ▁( a ▁ 5 0 0   m ² ▁chamber ) ▁with ▁the ▁U sp ens ky ▁C athedral ▁( built ▁in ▁ 1 5 5 2 – 1 5 5 7 ), ▁Pre ob raz hens ky ▁C athedral ▁( 1 5 5 6 – 1 5 6 4 ), ▁Church ▁of ▁Ann unci ation ▁( 1 5 9 6 – 1 6 0 1 ), ▁stone ▁ch amb ers ▁( 1 6 1 5 ), ▁wat erm ill ▁( ear ly ▁ 1 7 th ▁century ), ▁bell ▁tower ▁( 1 7 7 7 ), ▁and ▁Church ▁of ▁Nicholas ▁( 1 8 3 4 ). ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Sol ov ki ▁museum ▁Official ▁site ▁of