廓然大公
Kuoran Dagong(Open-minded and Enlightened)

1744年写景图
A landscape painting
done in 1744

位于福海西北山水间。建于1719年（康熙五十八年）前，时称深柳读书堂。1726年（雍正四年）作较大增建，亦总称双鹤斋，1739年（乾隆四年）定名廓然大公。1755年（乾隆二十年）又在河池北侧依照无锡惠山寄畅园景做了大规模改建，尤以叠石为著。

1860年圆明园罹劫时，双鹤斋一景是园内幸存的少量建筑之一，1900年彻底毁于战乱中。

Situated amid the hills and waters to the northwest of the Fuhai Lake, this scenic spot was built before 1719 and known at the time as Willow Grove Study. In 1726, the fourth year of Emperor Yongzheng's reign, an expansion project was completed and the place was renamed Twin Cranes Study. In 1739, it became known as "Kuoran Dagong." In 1755 (20th year of Emperor Qianlong's reign) a large-scale renovation was initiated, inspired by the layout and design of the inspired by the layout and design of the Jichang Garden in Wuxi, which was renowned for its bizarre-shaped stones.

The Twin Cranes Study survived the 1860 fire set by the Anglo-French Joint Forces, but only to face destruction in 1900.

廓然大公遗址，今仍残存大量太湖石
Ruins of Kuoran Dagong,where lots of porous rocks are
still seen today