Angkor Wat: The World's Largest Religious Monument Still Stands After 900 Years

A Temple the Size of a City

When Suryavarman II commissioned Angkor Wat in the early 12th century, he was not merely building a temple but constructing a cosmological model in stone. The Khmer Empire, which dominated much of mainland Southeast Asia from its capital at Angkor, was at the height of its power, and the king intended his temple to represent Mount Meru — the cosmic mountain at the center of Hindu (and later Buddhist) cosmology, surrounded by the seas of creation.

The result is a structure whose statistics are almost difficult to process. The central temple complex covers 162.6 hectares — larger than Vatican City. The outer wall alone stretches 1,024 meters by 802 meters. A moat 190 meters wide circles the entire complex. Over five million tonnes of sandstone were quarried, transported, and assembled to create it, with the sandstone blocks cut so precisely that the structure has remained stable for nine centuries without mortar.

The Architecture of the Cosmos

Every element of Angkor Wat's design encodes religious symbolism. The central towers represent the five peaks of Mount Meru, with the tallest rising 65 meters. The surrounding moat represents the ocean at the edge of the universe. The processional causeway leading from the western entrance to the main temple — over 250 meters long and lined with carved stone balustrades in the form of nagas (mythological serpents) — represents the path across the cosmic ocean to the divine realm.

The galleries encircling the inner temple contain some of the most extensive bas-relief carving ever executed. The eastern gallery alone features a continuous relief sculpture over 49 meters long depicting the Hindu myth of the Churning of the Ocean of Milk, with 92 demons and 88 gods pulling a serpent around Mount Mandara to churn creation. Other galleries depict scenes from the Hindu epics Mahabharata and Ramayana, celestial dancers called apsaras, and historical scenes from Suryavarman II's reign.

From Hindu Temple to Buddhist Shrine

Angkor Wat was originally dedicated to Vishnu — unusual for Khmer temples, which typically honored Shiva — and was constructed facing west, the direction associated with death and ancestors in Khmer tradition, suggesting it was designed as a funerary monument for Suryavarman II himself.

Over the following centuries, as Theravada Buddhism spread through the Khmer Empire and replaced Hinduism as the dominant religion, Angkor Wat was gradually adapted. Buddhist statues were installed, modifications made to some carvings, and the temple acquired new religious meaning within a different theological framework. Unlike many Hindu temples in Asia that were converted or destroyed during religious transitions, Angkor Wat was simply absorbed — perhaps because its sheer scale made destruction unthinkable.

The temple has been in continuous religious use for most of its history, a Buddhist monastery has operated within its precincts since the 14th century, and it remains an active place of worship today alongside its identity as a UNESCO World Heritage Site and tourist destination.

Rediscovery and Restoration

French naturalist Henri Mouhot brought Angkor Wat to sustained Western attention after visiting in 1860, though the temple had never been truly abandoned or lost to local knowledge. French colonial archaeologists began systematic restoration work in the early 20th century, and the École française d'Extrême-Orient conducted decades of research and conservation at the site.

The Cambodian civil war and Khmer Rouge period from the 1970s through the early 1990s severely disrupted conservation work and caused some damage. Since 1993, a major international restoration effort has resumed, with teams from France, Japan, India, Germany, and the United States all contributing to the preservation of different sections of the complex.

Angkor Wat appears on Cambodia's national flag — the only building in the world to hold this distinction — and it receives approximately two million visitors annually.

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