LEGO Set for children and adults, suitable from the age of 16 years, theme: Houses and Buildings, launched in 2019, 3036 piece(s)   LEGO Ideas 21318 Tree House Not filled in Alternative text to the photo! A Challenge for All the DIY Enthusiasts Treat yourself to a building challenge and celebrate the beauty of nature in different seasons. Build a Tree House                    Build a Tree House, have fun, and get your whole family involved! ...