Walmart offers the LEGO Architecture Leaning Tower of Pisa, model no. 4654650, for $29.99. (Amazon has it for the same price with free shipping for Prime members, while Target has it for a few cents more.) Opt for in-store pickup to avoid the $4.97 shipping fee. That's the lowest price we could find by $5. This 345-piece set measures approximately 10" x 4" x 5" when assembled.