The small number of basic origami folds can be combined in a variety of ways to make intricate designs. The best-known origami model is the Japanese paper crane. In general, these designs begin with a square sheet of paper whose sides may be of different colors, prints, or patterns.
On 30 June 2017 the city-state of Berlin had a population of 3.69 million registered inhabitants in an area of 891.85 km 2 (344.35 sq mi). The city's population density was 4,048 inhabitants per km 2. Berlin is the second most populous city proper in the EU.
COMPARING THREE CITIES: PARIS, STOCKHOLM AND BEIJING. Paris. Paris is the capital of France, located on the River Seine, in the north of the country. Paris has. a population of 9.93 million people in its urban area, which occupies 1,200 square kilometres. In fact, almost 20% of the countryÂ´s population live within the metropolitan area of Paris.