Walmart offers the LEGO Architecture United States Capitol Building Kit, model no. 21030, for $69.70. Opt for in-store pickup to drop it to $67.96. (Amazon offers it for a few bucks more.) That's $2 under our mention from Black Friday and the lowest total price we've seen. (It's also the best deal now by $4.) This 1,032-piece kit features a removable top.