Cu­a Trai or Ke Trai of which the main name is Dong Bac Mon (Cu­a Dong Bac), is located in the northeast corner of Hue Citadel, on the west bank of the Dong BaRiver. The arch was built in 1809 under the reign of King Gia Long, and the upper floor was built in 1824 under the reign of King Minh Mang.

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.

Vua Thanh Thai, whose full name was Nguyen Phuc Bu­u Lan, was the tenth emperor of the Nguyen Dynasty in Vietnam. He was born on March 14, 1879, and ruled from 1889 to 1907. Vua Thanh Thai ascended to the throne at a young age, only nine years old, after the death of Emperor Dong Khanh.

An Dinh Palace (Cung An Dinh) is a historic royal palace located in Hue, Thua Thien-Hue Province, Vietnam. It was built in 1917 during the reign of Emperor Khai Dinh of the Nguyen Dynasty and served as his summer palace.

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.

Cửa Ngăn (cu­a The Nhan) is a historical site that holds cultural and architectural significance. Cu­a Ngan is situated in the heart of Hue City, which is known for its rich history as the former imperial capital of Vietnam. It is located in the Phu Hoa neighborhood, which is within close proximity to many other notable landmarks and attractions in the city.

Cửa Chương Đức (Chuong Duc Gate) is one of four doors to enter the Hue Imperial Citadel. It is located in the Le Huan street, Thua Thien Hue.

Cu­a Chanh Dong hay cu­a Dong Ba (Chanh Dong Gate) is located in the east and is one of the ten main gates of Hue citadel. Dong Ba Gate was built in 1809 under the reign of King Gia Long. By the reign of King Minh Mang, it was solidly built and completed as it is today.

Dien Voi Re (Mieu Long Chau) or Elephant Zoo is a famous historical site located in Thuy Bieu, Thua Thien Hue, Vietnam. It is a historical relic of a herd of elephants under the Nguyen dynasty. This unique relic is the vestige of Hue ancient capital.

Huế (formerly Thừa Thiên Huế province) is a southernmost coastal city in the North Central Coast region, the Central of Vietnam, approximately in the center of the country. It is known for its rich history, cultural heritage, and natural beauty. Hue was the imperial capital of Vietnam during the Nguyen Dynasty. Hue's 2019 population was at 1,282,885.