Going to the ancient city of Rongzhou is to see the Zhenwu Pavilion, which has a history of more than 400 years, with a complete structure and no nails! Built on a foundation with a thousand years of history and solidified by sand! The four pillars on the second floor are suspended and not connected to the ground! After several major earthquakes, they were hairless! The wisdom of the ancients of China! Amazing ❗️