Beijing is a city with a history of more than 3,000 years and one of the cities with the most world cultural heritage in the world. At the same time, as the capital of China, it is a modern city with a population of more than 20 million. When walking in this city, you often see the collision of tradition and modernity, and you often have the illusion of traveling through history and the future. Sometimes I wonder, will the development of modern cities engulf tradition? I don't have an answer either. Those photos are like this question.