Hong Kong 4D Cityscape is a patented, multi-layer puzzle that comes with 1000+ puzzle pieces and 2000+ educational facts! Assemble the first two layers of the puzzle to form a map of the city"s streets, roads, railways, parks, and geography. When the base layers are complete, you"re ready for a trip through history! Using scale-model buildings, the puzzle spans 98 years of architectural history, so you can observe the skyline as far back as 1912, all the way through 2010 with the completion of the I.C.C. International Commerce Center. Hong Kong 4D Cityscape Puzzle includes such iconic structures as the Tsim Sha Tsui Clock Tower, Hong Kong Convention Center, Bank of China Tower, and the I. F.C International Finance Centre. How does it work? Once your base is complete using traditional jigsaw puzzle pieces, the vertical building of Hong Kongs skyline begins by placing 81 buildings and skyscrapers in chronological time sequence. This is done by following the enclosed 4D Time Poster. Hong Kong 4D Cityscape Puzzle is an exciting new way to get kids interested in all aspects of building a great city: architecture, geography, science, engineering and design.