In the queue leading up to the mausoleum you are not allowed to take any photos and obviously not in the mausoleum itself. However after the visit you can approach the entrance from the other side and take photos of the outside from a discreet distance. Only other experience was a visit to Lenin’s tomb in Moscow so a similar experience to that.
Everyone had seen Mao Maoseleum previously in Beijing, hochi minh's also is the same ,it is only for comunistic countries that keep the leaders in a maner like this.cell phone is allowed but camera not allowed the cur goes fast.
You queue to visit the Mausoleum and walk pst Ho Chi Minh quite quickly.
Mon-Su: 08:00-16:00