I studied a little bit of architecture in college, and while I've forgotten all those pesky details we had to memorize for exams (you know, minor stuff like influential architects, buildings, and styles), I retained an appreciation for architecture as art. The French Colonial architecture seems out of place in an Asian country such as Cambodia. The above photo captures a beautifully restored building now used by UNESCO. I love the luck I struck by catching a passing monk and traditional cyclo in the same shot.
Next to the UNESCO building was another fantastic representation of the style, though it could do with a new coat of paint. Both of these buildings are opposite the park in front of the national museum near the riverfront.
And lastly, I'm not sure if the building along this side street was French Colonial or not, but the open shutters struck a chord with me visually.