LEGO DUPLO Castle is a subtheme of the DUPLO line, designed for younger children with larger bricks for easier handling. Active from 2004 to 2008, the DUPLO Castle sets featured medieval-themed elements such as knights, castles, and dragons. Notable sets include "DUPLO Castle" (4777), "King's Castle" (4864), and "Knights' Tournament" (4776). These sets provided a simplified yet engaging medieval play experience for preschool-aged children.
2006 LEGO Sets
2006 was a year of creative resurgence, adding major themes while closing older ones. LEGO Batman debuted as the first full DC Comics collaboration, joined by Avatar: The Last Airbender, Exo-Force, and SpongeBob SquarePants. LEGO Mindstorms NXT modernized the robotics platform with sensors and wireless control, and Remote Control Trains replaced the 9V system. Vikings and Clikits ended, while standout collector sets such as the Technic Tow Truck (8285) and Boeing 787 Dreamliner (10177) strengthened LEGO’s appeal among adult fans.