Chin Ham Historical Site (Khu Di Tích Lịch Sử Chín Hầm), also known as Nine Tunnels, is a historical site in An Tay ward, Hue city, about 6 km south of the city center, at the foot of Thien Thai mountain. It's called Nine Tunnels, but actually there are only 8 cellars and an attic. This is the area where the treasure of war materials and weapons was built by the French army in 1941.

Emperor Dục Đức’s burial ground is a small complex that also includes the graves of Emperors Thanh Thai and Duy Tan. Emperor Duc Duc was the 11th emperor of the Nguyen Dynasty in Vietnam. Interestingly, Duc Duc was imprisoned by the court for being a Francophile and he died after reigning only three days in 1883. He was born on September 2, 1852, in Hue, the capital city of Vietnam at the time.

The wards of An Dong, An Tay, and An Cuu have been merged into An Cựu ward. With its historical significance, vibrant market, and ongoing urban growth, An Cựu is an attractive area for both locals and visitors exploring Huế.

Vua Duy Tan, whose birth name was Nguyen Phuc Vinh San, was the 11th emperor of the Nguyen Dynasty in Vietnam. He was born on October 19, 1900, and reigned from 1907 until 1916. Duy Tan's reign was significant because he sought to modernize and reform Vietnam, advocating for greater independence from French colonial rule.