Built in 1816 to 1891, the Saigon Central Post Office is another building that reflects the French influence in Ho Chi Mhin City. It is still a functioning post office and is the biggest in Vietnam. Constructed by famous architect, Gustave Eiffel. The same guy that designed, the Eiffel Tower and the Statue of Liberty, among others.
I loved the interior as well, with the line of red telephone booths and a gorgeous map above the clocks showing different world times.