Building Sets are the plain DUPLO brick sets, buckets and boxes of bricks without a story. DUPLO started in 1969, and the name comes from the Latin word for double, because each brick is twice as long, wide and high as a LEGO brick. The studs are made to fit, so DUPLO and LEGO bricks lock together and a builder can move from one to the other. For years the plastic bucket was the usual way to sell them, from the 1980s through the early 2000s, often shaped or printed as an animal, a farm or a circus, and some came as anniversary editions. Later sets switched to cardboard brick boxes with ideas for what to build on the side.
2017 LEGO Sets
Two films anchored 2017: The LEGO Batman Movie and The LEGO Ninjago Movie, each with extensive waves and a dedicated CMF series. BrickHeadz moved from limited releases to a full collectible line, and LEGO Boost introduced approachable coding and robotics. Several short-lived lines from prior years, including the BIONICLE reboot and Mixels, were no longer active.