Years of industrial operation shows that 3d jigsaw puzzles of buildings is an excellent 3d building puzzle with long service life. It can be designed with letters tips on the back of every piece for easy solving
3d building puzzle
The Netherland Windmill
The pieces hold together well when you pick them up. Its materials are non-toxic, which is especially important for kids. It is perfect for wedding and event favors, resort vacation keepsakes, souvenirs, etc.