Yongjing’s Chen Family Mansion- Yusan Mansion is one of the most famous historic private mansions in Taiwan. This renowned historic mansion was built in the 11th year of Tongzhi Period Qing Dynasty. In late Kangxi Period Qing Dynasty, ancestors of the Chen Family crossed the strait from Darongshe, Ketangpu Township, Raoping County, Guangdong Province to Taiwan. The Chen Family was industrious and developed irrigation areas in 15 villages. Richness made the Chen Family a highly honorable family in the local society. In late Qing Dynasty during the 15th generation Chen Yu-Kuang ventured to build a family mansion, and the project was completed after seven and one half years. Except for the side wings, which were renovated in recent years, the main structure has been preserved in the original Qing Dynasty architecture. It is a rare treasure worth exploring.