The Central Post Office next to Notre-Dame Cathedral is one of the finest colonial buildings in Vietnam — a grand vaulted hall designed in the 1880s by architects from the firm of Gustave Eiffel, with iron-and-glass architecture that recalls the Eiffel Tower's structural language. The scale is impressive: a single barrel-vaulted nave over 60 metres long, lined with telephone booths and postal counters still in operation.
It is not a museum — this is a functioning post office, and Vietnamese people come here to send packages and make calls. Two large historical maps are painted on the end walls; a large portrait of Ho Chi Minh hangs at the back. The building is free to enter and air-conditioned, making it a welcome stop on a hot afternoon.