During Yongzheng's reign, he presided over many cultural projects, including: 1. Yongzheng cultural project: During the reign of Yongzheng, he ordered large-scale repairs and expansion of the imperial gardens such as the Forbidden City, Summer Palace, and Yuanmingyuan. Many new buildings and scenic spots were built, forming a unique Yongzheng cultural landscape. 2. Construction of the Yonghe Temple: During the reign of Emperor Yongzheng, he ordered large-scale construction of the Yonghe Temple, including the construction of new halls, expansion of the area of the halls, the construction of Buddhist halls, and the carving of Buddha statues. It became one of the important Buddhist temples in northern China. 3. Yongzheng's literary inquisition: During the reign of Yongzheng, the famous policy of literary inquisition was implemented to suppress and persecute dissidents, resulting in many literary works and documents being burned and tampered with, which had a profound impact on Chinese literature and culture. Yongzheng was a famous poet and writer. His poems were known for their fresh, natural, subtle and graceful style, which had an important influence on Chinese literature and culture.