Lang Ong is located in an area of 18,500m2 at the Ba Chieu Cross-road (in Binh Thanh District) which was Hoa Binh Village, Gia Dinh Province. It is surrounded by a green and spacious area and is an ideal space for public activities of the local people.
The tomb was built in 1832 on a tortoise-shaped high mound which is a favourable position. According to the Oriental geographical concept, the tomb is located on a good layer of earth of the sacred land so it helps bring prosperity, peace and happiness to the local people. In the second Tu Duc Year (1849), the king ordered the tomb restored, built a temple and expanded the area to what it is today.
The tomb – the most ancient architectural part of the complex was built in the shape of half of an egg, with a large three-door gate carved with three Chinese scripts ‘Thuong Cong Mieu”. This gate was once selected as the symbol of Sai Gon – Gia Dinh.
 

Over nearly two centuries of ups and downs with many restorations and much construction, the complex of Lang Ong, including the temple, the tombs of Le Van Duyet, his wife – Do Thi Phan and two female servants has been preserved.

In the complex, the temple was built with the architecture of a communal house in the south with a pre-chamber, mid-chamber and main chamber, each separated from the others by a small space. At the two sides of the main temple are two symmetrical rows of eastern and western corridors. The work was imbued with the architectural imprints of the Nguyen Court in Hue. It was restyled to be suitable to the tropical climate of the south.
The two-layer roof (one overlapping the other) of the temple is the highlight of the entire work, reminiscent of the image of dragon boats. The technique of inlaying, carving and engraving on wood, stone and metals reflects the architectural features of the Hue Imperial Palace at that time. The decorations and patterns are very lively and close to real life, reflecting both reality and belief.
Le Van Duyet, an outstanding general and politician, was a high-ranking mandarin in the Nguyen Dynasty. In the post of Governor of Gia Dinh, he made a great contribution to protecting and expanding the southern territory. He gave out drastic reform policies which were contradictory to the views of the Nguyen Dynasty at that time but showed the fact that he was a visionary man. He initiated and instructed the digging of the Vinh Te Canal – the most important one in the Cuu Long River delta. This canal helped the special economic zone become prosperous.
For a long time, the image of General Le Van Duyet has been in the consciousness of the people in Gia Dinh and in southern Vietnam. People considered him a genie, so all rituals to commemorate him became religious activities. Every year they celebrate his death anniversary and organize a seal giving ceremony.
Although there are differing views on the life of Le Van Duyet in history, he is credited with building an area into the bustling and prosperous Gia Dinh City. His greatness is praised by all people.