Sorry, I lied about Parliament—it’s just Big Ben. LEGO Big Ben, that is, down to just $19.98 at Amazon (about a third off, and the LEGO Architecture sets rarely go on sale).
This 346-piece set has an average 4.5 stars review and will let your brickhead recreate a world landmark in plastic, the way the lord intended. Or something. (Hey, I don’t make the toys. I just tell you about them.)