History books of Nguyen Dynasty record that after ascending the throne in 1802, Emperor Gia Long established the medicine agency to serve the court. However, it was not until the reign of Emperor Minh Mang that the structure of Thai Y Vien (Imperial Medicine Institute) was gradually completed. From then on, the recruitment of personnel to Thai Y Vien was extremely tight and serious.

Among many mausoleums of the Nguyen Dynasty, recognized by the UNESCO as a World Cultural Heritage in 1993, Emperor Gia Long's mausoleum is a magnificent painting of the coordination between nature and architecture; in which, nature is the main factor creating the grandeur of the architectural structure.

Thai Hoa Palace, the symbol of imperial power of the Nguyen dynasty, set to be built by Emperor Gia Long in 1805, is currently being undergoing a restoration funded by nearly 130 billion Vietnamese dong from the state budget. The comprehensive conservation and restoration project of Thai Hoa Palace relic began in late 2021 and is scheduled for completion in 2025.

Kham Thien Giam - an institution specialized in observing and studying astronomy, weather forecasting, calendar making, and timekeeping to determine the agricultural seasons for the people, was constructed by the Nguyen dynasty during the reign of Emperor Gia Long.