Considering the Juliana in Phnom Penh?
A VT member wrote the following comment about visiting Phnom Penh:
Visa on Arrival by AlbuqRay
When you fly into Phnom Penh, the airline will give you two forms to fill out. You will need them but if you want a Visa on Arrival, you will have to get another form in the arrival area, fill it out, give them your passport and form, and wait as your paperwork is processed real-time behind the counter. You then pay $20 ($1 more if you don't have a passport photo) and get your passport back with the visa in it. Only after doing this can you pick up your luggage and proceed through immigration. I was going to take more pictures of this process, but a guard told me not to take more pictures when he saw me do the first one. BTW, it may cost $20 to get into Cambodia, but don't forget to save $25 to get out (departure tax).