Angkor in Cambodia is a spectacular religious complex featuring the world's largest religious building, Angkor Wat. The temple was constructed between 1113 and 1150 by King Suryavarman II as a funerary temple - the complex is orientated towards the west, the symbolic direction of death.
The ruins of Angkor, which comprised around 1,000 temples, are located on a 3,000 square kilometer site - it was the largest preindustrial city in the world that could have supported the population of one million people.