Introduction to Zhu Lao'an: Zhu Lao'an, formerly known as Xingjiao Temple, is an earlier Buddhist temple in Shandong. It was first built in the Western Han Dynasty and has been popular in the past dynasties. Later it was also known as Zhu Lao'an. There is a spring beside the nunnery called Holy Water. , this spring is one of the new 72 famous springs in Quancheng. The water quality is sweet and refreshing, and it is very spiritual.