Kids and adults love 3D castle puzzles like the challenging and detailed ones listed here because - for many - it's the closest we'll come to seeing a royal palace.

Which style suits you best - Camelot, Disney's Magic Kingdom, or replicas of Europe's most popular castles? This time lapse video shows you how much work goes into assembling one of these puzzles. There are some tips thrown in along the way (watch the pop-ups). To makes things more complicated, this kid's parents gave him the puzzle without the box! That will keep a child busy for awhile! ;)

All of which leads me to Lego Harry Potter. The quality of the toy series is top notch and beyond reproach. The Harry Potter Lego scenes are lovingly detailed, fun for children and adults alike, and suitable for play… or display. Whether for children or collectors, Lego's Harry Potter scenes are first class. Lego Harry Potter Hogwarts Castle (4842)is one of the most spectacular ones Lego makes. Figures include Harry, Hermione, Lord Voldemort, Dumbledore, Snape, McGonagall, 2 Dementors, and many others.