One of the many balustrades lining the causeway.
The most famous image in Cambodia.
I'm no expert in Angkorian history. The basic facts are that Angkor Wat was built in the 12th century, and gradually expanded with each successive king.
Angkor Wat is only one of the several temple complexes in the area which is really huge. A bicycle or motorbike is the ideal way to move around.
For the casual observer one day is enough.