My 5-year old built the Creator Tower Bridge 10214 (with me overseeing and fixing his mistakes) over about two weeks. It's a truly gorgeous set! 41” long and 18” high; now I
LEGO MOC 10214 Tower Bridge Alternative build by InyongBricks | Rebrickable - Build with LEGO
LEGO Creator 10214 Tower Bridge - All Sports Custom Framing
Brickfinder - Rebrick Your LEGO Tower Bridge (10214) Into This Lovely Modular