You’ve probably never heard of Jayavarman VII (right).

Born around 1122/25, he is widely regarded as one of the most powerful of Khmer monarchs, and ruled the vast Khmer Empire between 1181 and 1218. He was the first Khmer king to fully embrace Buddhism (earlier kings had been Hindu).

The empire was founded at the beginning of the 9th century, and at its zenith in the 12th century had subjugated much of Southeast Asia. By the middle of the 15th century however it had disappeared. All the temples and surrounding buildings were reclaimed by the jungle, and not uncovered again until the 19th century, mainly by French archaeologists. Archaeology is thriving in Cambodia today, and new discoveries are being made.

At the heart of the empire was the capital, Angkor, with its principal temple Angkor Wat, now one of the most visited heritage sites worldwide. Angkor Wat features on the national flag of Cambodia.

Steph and I (with our younger daughter Philippa) had the privilege of visiting Angkor Wat in December 2000.

Angkor Wat was actually built by Suryavarman II (ruled 1113– c.1150) as a Hindu temple, and took almost 30 years to construct. Under Jayavarman II, it gradually became a Buddhist one. The king was also responsible for one of the most beautiful temples, Bayon (below), at Angkor.

And he established an impressive network of more than 100 hospitals throughout his empire, and other temples and cities that are now only being intensively studied in the northwest of Cambodia close to the frontier with Thailand.

Last Saturday Steph and I watched (on Channel 4) the third and final part of Lost Temples of Cambodia, fronted by British archaeologist Pauline Carroll (about whom I can find no information other than she worked on the dig in Leicester that discovered the remains of King Richard III in 2012). Click on the image below to access each of the programs.

Filmed at Angkor Wat and other close-by sites, the programs also explored newly-discovered sites to the north west close to the frontier with Thailand. And, as with Angkor Wat, the temples at Banteay Chhmar (and another recently-discovered a short distance away at Banteay Toap) are revealing much about the king who built them.

As we watched the programs, it was hard not to pinch ourselves that we had been so lucky to have visited Angkor Wat before it became overrun with tourists. We had flown to Siem Reap from the Philippines (where I was working at the International Rice Research Institute) via Singapore on Silk Air, and spent three nights there. Which gave us two full days to explore the many Angkor sites and take a boat ride on the large lake nearby, the Tonlé Sap.

Just click on each of the icons on the Angkor map below to explore a photo album for each, and zoom out to see the location of other sites in the northwest of Cambodia that were featured in the Channel 4 programs.

We didn’t join any tour to explore Angkor. Through one of my IRRI colleagues based in Phnom Penh we arranged for a driver to pick us up at the airport, and then stay with us over the next two and a half days. Once we had toured one of the sites, the driver quickly whisked us off to the next, finding the best locations to start from. Such as at Banteay Kdei (photo album), where he dropped us at one entrance, and picking us up on the far side of the site once we had walked through at our own pace, and not one dictated by any tour guide.

Even at Angkor Wat itself it’s quite remarkable how many photos I was able to take with only a smattering (if any) of other tourists (photo album).

As we watched the TV programs, it brought back to us how beautiful are the many bas-reliefs and stone carvings in general through the Angkor complex. Absolutely exquisite! And to some extent, those at Banteay Chhmar and Banteay Toap (more recent than Angkor Wat although constructed by Jayavarman II) are even finer.

Here is just a small selection of those we saw.

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Taking the Angkor complex in total (and the many other sites across Cambodia) the construction of temples and other buildings would have required millions of tons of sandstone that had to be quarried some distance away and transported to the sites.

The stone came from Phnom Kulen, a range of hills to the northeast of Angkor Wat by about 30 miles. A series of canals was constructed to float the millions of stone blocks to the construction sites, on rafts pulled by elephants. Evidence for the canals was first gleaned from satellite images, and verified at ground level.

The construction must have involved a very large population. It has been estimated that perhaps as many 1 million people lived at Angkor, making it one of the largest cities in the ancient world. And they would have to be fed. But on what? Rice, of course, and that crop remains the staple in Cambodia today, thriving in the hot humid lowland climate, even in seasonally deep-water sites.

Eventually the Khmer Empire declined. Was it due to overpopulation, climate change affecting agricultural productivity, or warfare both internal and foreign? Certainly the Khmer faced threats and invasion from Thailand and Vietnam. Probably it was a combination of many factors.

But as new sites are discovered and recovered from the jungle, the history of this once thriving empire is being revealed in ever more detail.

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There were a few things that caught my attention in the three program series on Channel 4.

I mentioned that Pauline Carroll was an unknown entity before now. And yet, she didn’t ‘front’ the series in quite the way you might expect in such programs. There was a background narrative, from restaurateur and presenter of The Great British Bake Off, Prue Leith. What a strange choice as narrator! Instead, Pauline Carroll was left to wander around the various sites, ask a few questions of local archaeologists, and occasionally speak to camera.

Second, as with many documentary programs nowadays, considerable use was made of drones to capture aerial shots, which certainly enhanced appreciation of the scope and scale of Angkor Wat and the other sites. In the past, such aerial photography would have required helicopters, but even low-cost drones can provide high quality output, and reaching areas inaccessible to helicopters.

And the final point I would like to make is about the healthy state, it seems, of Cambodian archaeology. Pauline Carroll met and spoke with several knowledgeable Cambodian archaeologists who have taken on the role of revealing their nation’s cultural history. And this is even more remarkable and encouraging considering it’s not that many decades since the appalling Cambodian genocide perpetrated by the murderous regime of Pol Pot in the 1970s, when millions of lives were sacrificed, particularly from the intelligentsia.

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