After flying in from Bangkok we checked into our hostel. And usually I wouldn't even mention a small detail like that, except that it is the best hostel we've stayed in to date! We're talking spacious rooms, air-conditioning, clean bathrooms, a pool, home theater (right next to the pool), and free breakfast buffet! All for 10$ a night...living in luxury at The Siem Reap Hostel!
Anyway, because we arrived in the evening, sight-seeing was out the question. So we did what we do best whenever we first arrive in a new place...walk around and ultimately get lost, then find our way back. We also booked a Tuk-Tuk (http://en.wikipedia.org/wiki/Tuk-tuk) and driver to take us to Angkor Wat and some of the surrounding temples. We heard the best time to view Angkor is at sunrise... needless to say we took it easy that night.
There's nothing like waking up, riding in a tuk-tuk, wind in your hair... and still too early for the rising sun. However, when the sun did come up, we were lucky enough to be in the temple and it was beautiful. I don't know too much about it, and instead of just copying what other people say read about here http://en.wikipedia.org/wiki/Angkor_wat. We stayed at Angkor for at least couple of hours exploring the maze of hallways and smaller rooms. The hand carved reliefs on the walls were so expertly carved that even 800 years later their detail hasn't been lost.
The next day, our final full day in Siem Reap, we saw some more temples and visited the Land Mine Museum. Cambodia's lands are riddled with un-detonated land mines, from the civil war only 30 years ago; now injuring and killing civilians. Even while walking around town you notice the high percentage of locals missing arms and legs.