What are the old and modern buildings in Beijing?

The Forbidden City, Temple of Heaven Park, Summer Palace, Beihai Park, Zhongnanhai, the Imperial Palace, the White Pagoda Temple, the Temple of Heavenly Peace, the Palace of Yonghe, the Temple of Dongyue, the Temple of Guangji, the Temple of Tanzhe, the Temple of the Red Conch, and the Great Wall.

Modern buildings in Beijing:

Terminal 3 of the Capital Airport, National Stadium (Bird's Nest), National Grand Theater, Beijing South Railway Station, National Swimming Center (Water Cube), Capital Museum, Beijing Television Center, Beijing New Poly Building, National Stadium, National Library (Phase II).

Difference:

The modern architectural system, regardless of whether its architectural style is traditional or modern, serves a modern aesthetic realm, and it all enters into the construction of the modern model of the capital on the general principle of epoch, linearity, and individuality. Ancient architecture emphasized the wholeness between heaven and earth and the relevance in the functioning of heaven and earth.