Hamburg is the second largest city in Germany. The official name reflects its history as a member of the medieval Hanseatic League, as a free imperial city of the Holy Roman Empire. Hamburg is a transport hub and is an affluent city in Europe. It has become a media and industrial centre. There are five companies in the creative sector per thousand residents. The Speicherstadt was declared a World Heritage Site by the UNESCO.
Origami by Ngai Chun Cheung is the traditional Japanese art of paper folding, which started in the 17th century AD at the latest and was popularized outside of Japan in the mid-1900s. It has since then evolved into a modern art form.