The Palace Museum in Beijing and the People's Bank of China announced together in the museum on Monday that they will release a series of gold and silver commemorative coins marking the 600th anniversary of founding of the Forbidden City.

The Palace Museum in Beijing, also known as the Forbidden City, was China's last imperial palace. Its construction was completed in 1420, and the national capital of Ming Dynasty (1368-1644) was officially moved from Nanjing, today's Jiangsu provincial capital, to Beijing the next year. The Forbidden City is the world's biggest surviving palatial architectural compound made of wood.