Time changes and the world innovates, Ho Chi Minh City (HCMC) has also built iconic projects for the new era such as Landmark 81, Bitexco Financial Tower, Thu Thiem Bridge 2, etc. However, in terms of classicism, this city still preserves masterpieces that completely defy the changes of time, they are the Independence Palace, Notre Dame Cathedral, Cu Chi Tunnels, and especially the Ho Chi Minh City Post Office.