At 190 metres wide and forming a rectangle measuring 1.5 km by 1.3 km, it is hard to imagine any attacking force overwhelming the defences. But the moat was more than just a defensive bulwark, in line with the temple's Hindu origins it represented the oceans of the world. A rectangular wall measuring 1025 metres by 800 metres borders the inner edge of the moat. There is a gate in each side of the wall, but unusually for the mainly Hindu-influenced Angkorian temples, the main entrance faces west. This entrance is a richly decorated portico, 235 m wide with three gates. However, the temple's greatest sculptural treasure is its 2 km-long bas-reliefs around the walls of the outer gallery and the hundred figures of devatas and apsaras. This intricately carved gallery tells stories of the god Vishnu and of Suryavarman II's successes on the battlefield. The whole complex covers 81 hectares