Tian'anmen Square is one of the largest city squares in the world. It is situated in the heart of Beijing. Tian'anmen was built in 1417 and was the entrance gate to the Forbidden City. Now the square stretches 880 meters from north to south and 500 meters from east to west. The total area is 440,000 square meters. That's about the size of 60 soccer fields, spacious enough to accommodate half a million people. This 3D puzzle is made of paper and expandable foam board. It is 27.5 x 20.5 x 11cms when completed.