Beijing is the capital of China and the second biggest city after Shanghai. The city is very large and has a population of over 20 million people. It is known for being pretty flat with only 3 hills within the city limits. Beijing is a very dynamic city with a mix of new and old. You can find most of Beijing's attractions and sights in the two central districts: the Dongcheng District and the Xicheng District. The famous Forbidden City is located in the Dongcheng District. The two districts are located within the 2nd Ring Road and offer some good entertainment, drinking and eating options.