Angkor Wat are situated in the province of Siem Reap. This area it is biggest temple complex of the world and revealed itself after being hidden in the Jungle for many years.
The whole area is about 400 km² that also includes the surrounding forest, it is so big area for you to forest that and make sure you use a good shoes to around that area by your feet.
You also can visit the temple complex with a “remorque” motorbike which is a small motorbike where you can sit side by side in two behind the driver. This is a great idea to visit the area as it is very cheap and the driver can tell you much about the temples and history. Taxi are ok too, as well as motor and bikes for rent. For see Angkor Wat from the top,you can rent an hot air balloon, or even an helicopter.
There are have two ways to visit the area and still see the main attractions, the little circuit and the big circuit. The little circuit is 17 km and get you to the main temples of Angkor. The big circuit takes 26 km and is an extension of the little one but continues on east side of the area.
There are more than a 100 temples in the whole area, more than you can see on your visit but the most famous ones you will discover during both circuits trough the temple area.