Overview
Angkor Thom was the last and most enduring capital of the Khmer Empire — a 9 km² fortified city enclosed by an 8-metre wall and a 100-metre moat, built by King Jayavarman VII in the late 12th and early 13th centuries and home to an estimated one million people at its height. Five monumental gates pierce the walls at the cardinal and ceremonial points, each crowned with the same four-faced towers as Bayon and approached across a causeway lined with 54 stone devas (gods) on one side and 54 asuras (demons) on the other, pulling the naga serpent in a symbolic recreation of the Hindu Churning of the Sea of Milk.
At Angkor Thom's geometric centre stands Bayon — Jayavarman VII's state temple and the most immediately striking structure in all of Angkor. The temple's 54 towers, each bearing four smiling faces of the bodhisattva Avalokitesvara fused with the king's own portrait, create an effect unlike any other monument in the world: ascending from ground level through the temple's galleries, a visitor is surrounded on all sides by enormous stone faces gazing inward and outward simultaneously, as if the divine intelligence of the empire was watching from every direction at once.
The Bayon's 1.2 km of bas-relief galleries are the finest narrative carvings in Angkor after Angkor Wat — and in some respects more humanly vivid. While Angkor Wat's galleries depict Hindu mythology and royal ceremony, Bayon's lower galleries show scenes of daily Khmer life: market vendors, cockfighters, fishermen, soldiers on the march, women giving birth, and the naval battle of 1177 against the Cham invaders who briefly occupied Angkor. These panels record the social texture of a 12th-century civilization with an intimacy unmatched elsewhere in Southeast Asian art.
Beyond Bayon, Angkor Thom contains the Terrace of the Elephants (a 350-metre royal reviewing platform decorated with life-size elephant trunks and garudas), the Terrace of the Leper King (with its extraordinary double-walled bas-relief gallery), and the Baphuon — an 11th-century temple-mountain that is the subject of the most complex archaeological reconstruction project ever attempted, a decades-long French effort to reassemble 300,000 numbered stone blocks that were dismantled before the Khmer Rouge era.
When to Visit
Angkor Thom gates: Open 24 hours, unguarded — best photographed at sunrise from the South Gate causeway. Bayon: Open 7:30 AM – 5:30 PM. Best time for Bayon: 7:30–9 AM for soft light on the stone faces and lower crowds; late afternoon (3–5 PM) when the western faces catch warm light. Baphuon: Open daily; the reclining Buddha visible from the west side is best seen in the early morning. Avoid 10 AM–2 PM when Bayon fills with tour groups.
Admission and Costs
Included in Angkor Archaeological Park pass: $37 (1 day) / $62 (3 days) / $72 (7 days). Licensed guide (full day, all Angkor): $35–60. Tuk-tuk for the "small circuit" covering Angkor Thom and Angkor Wat: $15–20 for the day.
The Case for a Guide
Bayon is the most iconographically complex temple in Angkor — and the one that most rewards a guide's explanations, because the bas-relief programme was deliberately redesigned partway through construction, creating two distinct iconographic layers that are invisible to an untrained eye.
- Face tower identity — the 216 faces are a fusion of bodhisattva and royal portraiture that encodes Jayavarman VII's theological programme; a guide explains how a Buddhist king justified depicting himself as a divine being in a civilization still deeply shaped by Hindu tradition
- Bas-relief programme analysis — the lower gallery's daily-life scenes are a documentary record of 12th-century Khmer society, and a guide identifies the market vendors, food stalls, medical treatment scenes, and naval battle sequences that are invisible without someone pointing them out
- Terrace of the Elephants — the platform's ceremonial function as the stage for royal processions, elephant parades, and military reviews becomes vivid when a guide describes the festival calendar of the Khmer court
- Baphuon reconstruction — the ongoing French reassembly of 300,000 stones is one of the most extraordinary conservation stories in archaeological history; a guide explains what happened and why the temple was in pieces
Tips for Visitors
The South Gate of Angkor Thom — the most photographed of the five gates, with its full causeway of stone devas and asuras — is best experienced in the early morning before tour buses arrive. Tuk-tuk drivers park on the Angkor Wat side; walk the gate's causeway on foot from both directions to see the naga-pulling figures at their full scale. Inside Bayon, climb to the third level for the most intimate face encounters — you can stand eye-level with the stone faces and examine the carving quality at close range. The Leper King Terrace's inner gallery is a hidden passage that many visitors miss entirely: a second wall of bas-reliefs running parallel inside the visible outer wall, accessible through a narrow passage at one corner.