One of the gifts I received for Christmas was a Lego city Airport. It has 703 pieces! It took me three hours to make. It has three turbines. The airplane is 48 cm long. It is harder than the Lego fireboat and helicopter, but easier than the Taj Mahal (which is 6000 pieces). I love it! The wheels move and turn, the plane inside has seats and cargo under it, I had fun putting it together, and it's just like a REAL airport!I HIGHLY recommend this for boys who like Lego's age 9-11.