What splendid calligraphy and painting were there in ancient China?

Calligraphy masterpiece:

Preface to Lanting Collection by Wang Xizhi of Eastern Jin Dynasty

Zhi Yong's True Grass Thousand Characters in Sui Dynasty

Yan Zhenqing's Duota Monument in Tang Dynasty

The Mysterious Pagoda of Liu Gongquan in Tang Dynasty

Ou Yangxun's Inscription of Liquan in Jiucheng Palace in Tang Dynasty

Sun's book spectrum in Tang Dynasty

Huai Su's "Self-narrative Post" in Tang Dynasty

Su Shi's Huangzhou Cold Food Poems in Song Dynasty

Mi Fei's Shu Su Tie in Song Dynasty

Zhao Meng in Yuan Dynasty