I have been to Cambodia many times. I like Siem Reap the best. I have been to Phnum Penh and Sihanoukville, but always come back to Siem Reap. Angkor Wat is just great. You should go there overland from HCMC Vietnam.
Ta Prohm = the famous "Tomb Raider" (2001) temple, in Siem Reap. Phenom Penh (I went there to checkout the dark tourism sites (Choeung Ek (the Killing Fields), S21 prison/ex-school); FCC bar); Sihanoukville (mainly Otres Beach hostels; with Chinese casino/resort constructions everywhere); then on to a boat / group tour bus to Don Det (the 4,000 Islands) and walking on a bridge (on the Mekong (Delta) towards Don Khone (the French train exhibit, a waterfalls. I still haven't gone to Hanoi, Halong Bay or Sapa. Took a Bus from Laos (my first VISA border crossing run) to Vietnam, then a Train Ride (my first time, trying a train, in Vietnam) (Da Nang, Hội An, Hue and then finally, to HCMC (Saigon). I thought that Vietnam was Awesome. There is that one island, called Phu Quoc )
Lovely country n full of rich History! The only thing that disturbs me is riding these poor majestic 🐘🐘🐘 only because I know they're beat'n into submission and for that reason I'd never ride one. Elephants are meant to be admired NOT ridden for a profit... your videos are informative thank you for creating Laura, look forward to the next one. Happy trails🙏✌