LEGO reveals 10305 Lion Knights' Castle and 10497 Galaxy Explorer as throwback sets for 90th anniversary [News] - The Brothers Brick | The Brothers Brick
LEGO 6426244 90th Anniversary Mini Castle | BrickEconomy
LEGO Lion's Castle/Galaxy Explorer celebrate 90th anniversary - 9to5Toys
LEGO 90th Anniversary Mini Castle (6426244) Review - The Brick Fan
LEGO 90th Anniversary Mini Castle (6426244) Review - The Brick Fan