Angkor Wat, located in northwest Cambodia, is the largest religious structure in the world by land area, measuring 162.6 hectares. At the centre of the temple stands a quincunx of four towers surrounding a central spire that rises to a height of 65 m above the ground.

The cause of the Angkor empire’s demise in the early 15th century long remained a mystery. But researchers have now shown that intense monsoon rains that followed a prolonged drought in the region caused widespread damage to the city’s infrastructure, leading to its collapse.