Cambodia, and SE Asia in general, seems to be one of the better places in the world for street photography. There's always a lot going on, you get a good mix of people taking various modes of personal locomotion, and it unfortunately being rather poor means you'll see situations play out you wouldn't typically see in the US. You get to take in all the different colors, buildings and structures in various states (of decay, usually) and see the entanglement of survival.
Spending Christmas in Phnom Penh was interesting. As a Buddhist country, I don't recall seeing a whole lot of churches around, but everywhere I went, people kept wishing me "Merry Christmas." I guess all white people in Cambodia must be Christian?
The streets of Phnom Penh are a hive of activity.