Achievements and functions of five ancient buildings in China.

The Zhaozhou Bridge

Sui Daxing cheng

Yueyang Tower

Pavilion of Prince Teng

Ganling (Tang)

The Summer Palace

the Potala Palace

Old Summer Palace

Mausoleum of the First Qin Emperor

Kaifeng Tower Forbidden City and Forbidden City.

The Great Wall is the greatest military defense project in the ancient history of the world. It is not a simple isolated first-line wall, but from point to line, from line to surface, connecting the passes, military fortresses, Guancheng and military towns along the Great Wall into a tight network, forming a complete defense system. The system of military fortress, Guancheng and military town has many functions, such as fighting, command, observation, communication, concealment and so on, and it is equipped with point, line and surface defense engineering of the resident army.

The outstanding representative of ancient stone arch bridge in China is the world-famous Zhao Zhouqiao in Zhao County, Hebei Province. Zhao Zhouqiao's design concept and exquisite craftsmanship are not only second to none among ancient bridges in China. According to the research of bridges in the world, open-shouldered arch bridges like this didn't appear in Europe until the middle of the 9th century, which was more than 200 years later than China. Zhao Zhouqiao's sculpture art, including balustrades, watchposts, lock stones, etc., is worthy of being an artistic treasure in the treasure house of cultural relics because of its lifelike shapes and exquisite craftsmanship. The construction technology of stone arch bridge in China also reflects the wisdom and achievements of working people in ancient China.

Yueyang Tower was built around 220 AD, and its predecessor is said to be the "Yuejun Tower" of Lu Su, a general of Soochow during the Three Kingdoms period. It was called "Baling Tower" in the Western Jin Dynasty and the Southern and Northern Dynasties, and it was called "Yueyang Tower" only after Li Bai wrote poems in the middle Tang Dynasty. At this time, Baling City has been changed to Yueyang City, and Baling Building has also been called Yueyang Building. For thousands of years, countless literati have visited places of interest here, expressed their feelings on the railings, and recorded them in words, recited them in poems, and painted them in form. Arts and crafts artists also describe the scenery of Dongting with Yueyang Tower as the theme, making Yueyang Tower the subject of repeated description and writing in artistic creation for a long time. Climb Yueyang Tower and you can browse the lakes and mountains of Dongting Lake in 800 miles. Yueyang Tower is the only one of the three famous buildings in the south of the Yangtze River that keeps its original appearance.

Wang Tengting is the pinnacle of classical architecture in China. It was built in the fourth year of Tang Yonghui (AD 653) when Li Yuanying, the son of Li Yuan, was appointed as the secretariat of Hongzhou. This is the only existing royal building in the south.

The Forbidden City has become a world cultural heritage, which has deepened people's understanding of the value of the ancient buildings in the Forbidden City. Architecture is a monument of human history and culture, and great architecture often becomes a symbol of a city, a nation or even a country. The Forbidden City is such a symbol. The Forbidden City is not only a magnificent ancient building, but also a collection of cultural relics. They are linked together and become the carrier of China's traditional culture and the symbol of the achievements of Chinese civilization. The Forbidden City represents a culture that has become history, and it has the shell of palace culture. At the same time, it represented the mainstream culture at that time. After a long period of historical screening and accumulation, of course, it can not be simply summarized as "feudal backwardness." The Forbidden City and the museum are not unrelated and antagonistic, but organically unified and complementary. Taken together, it can be seen that the Palace Museum is one of the few museums and cultural heritage in the world with the characteristics of art museum, architecture museum, history museum and palace culture museum, which conforms to the internationally recognized basic principles of "original site protection" and "original appearance display". The basic spirit of world cultural heritage is cultural diversity. From the perspective of world cultural heritage, people strive to explore and understand the outstanding and universal value of the Forbidden City.