Meet the meticulous sunmao structure, or mortise and tenon, in ancient Chinese architecture. | People's Daily, China

Some 600 years ago, a retired feudal lord in China built a utopia covering some 50,000 square meters. Today, the complex still remains an architectural wonder and unsolved mystery. Click to watch. | China Xinhua News

The four great inventions of ancient China – paper, gunpowder, printing and the compass – have been celebrated for centuries for their economic and social impact. Today, China's innovations can be found in quantum communications, the digital economy, advanced materials and renewable energy. The nation's constant push for innovation has been driven by its abundance of creativity since ancient times. | CGTN