China is an East Asian nation with over 1 billion people and diverse landscapes including mountains, deserts, grasslands, and over 14,000 km of coastline. Its capital Beijing and largest city Shanghai contain modern architecture as well as historic sites. Iconic landmarks include the Great Wall and Tiananmen Square. The national flag features five yellow stars. Popular Chinese foods include sweet and sour pork, gong bao chicken, wontons, and spring rolls. China has over 50 ethnic groups and a government-run education system providing nine years of compulsory schooling.