Old.
I like the 3-D puzzles, so you’re making an actual object, like a model of the Capitol building, the Eiffel Tower, or a Grand father clock; see the ‘Bits and Pieces’ website:
http://www.bitsandpieces.com/product/father_time_1200_piece_shaped_jigsaw_puzzle/novelty_clocks
(you can also get it in a 600-piece puzzle; or, Hey! you could build a real Grandfather Clock :-)
-JT