Plain of Jars Xieng Khouang Laos

Laos Is the Most Heavily Bombed Country in History. The Plain of Jars Sits in the Middle of It.

Most guides skip to the archaeological mystery: thousands of ancient stone jars scattered across a highland plateau, their purpose debated for a century, now a UNESCO World Heritage Site. That is true and worth a full day of your time. But the Plain of Jars also sits on ground where, between 1964 and 1973, the United States flew more than 580,000 bombing missions over Laos, dropping roughly 260 million cluster submunitions. Around 80 million of them did not explode. Laos remains, per capita, the most heavily bombed nation in recorded history, and more ordnance fell here than on all of Europe during the Second World War.

You cannot separate the ancient jars from that context when you are standing in a field that still has UXO clearing markers around the path. Nor should you.

The Jars

The jars are Iron Age megalithic containers, carved from stone quarried up to several kilometres away and transported to these hillside sites between approximately 500 BCE and 500 CE. The largest are over three metres tall and weigh more than a tonne. More than 2,100 jars have been recorded across at least 90 sites, of which seven are currently open to visitors.

The leading archaeological interpretation is that the jars were used in funerary practices: the body would decompose inside the jar, then the bones would be removed and buried nearby. Human remains, burial goods, glass beads, and bronze objects have been found at multiple sites, supporting this theory. What no one has fully explained is the scale: why hundreds of enormous stone jars on a single plateau, who organised their construction, and what the quarrying and transport required from the society that built them.

The answer may never be complete. Significant portions of the sites were damaged or destroyed by bombing, and UXO contamination has prevented systematic archaeological excavation across most of the area.

The Sites Open to Visitors

Site 1 (Thong Hai Hin) is the most accessible: 331 jars on a grassy hill about 15 kilometres south of Phonsavan, with a visitor centre and well-maintained cleared paths. This is where most travellers begin and, if time is limited, where they end. A bomb crater from the air war is visible at the edge of the site and most guides will point it out.

Site 2 (Hai Hin Phu Salato) has 93 jars on two adjacent hillsides, a more strenuous walk, and significantly fewer visitors. Site 3 (Hai Hin Lat Khai) requires a walk through a small village and a forested hillside and has 150 jars in a more dramatic setting. Both are genuinely worth the effort if you have a full day.

Sites 16, 23, 25, and 52 are more remote, requiring a guide, longer drives, and in some cases hiking to access. Site 52 is near a Hmong village and only reachable on foot. These are for travellers specifically interested in archaeology or in going where other tourists are not.

Entry to the sites costs 15,000 Lao Kip for foreigners (roughly US$1). Stay on marked paths. The cleared walkways at each site represent years of work by MAG (Mines Advisory Group) and other clearance teams. The areas outside the markers have not been cleared.

MAG and the UXO Centre

The MAG office in Phonsavan is worth visiting before you go to the sites. MAG has been clearing UXO from Laos since 1994. The exhibition explains what cluster munitions are, how clearance works, and what the consequences of UXO contamination mean for Lao communities on a daily basis: around 25 percent of potentially farmable land in Laos cannot safely be cultivated. The visit adds a framework that makes walking around the jar sites with cleared-path markers much more specific. Free to visit; donations to MAG’s work are well-directed.

Getting to Phonsavan

Lao Airlines operates flights from Vientiane to Xieng Khouang Airport (XKH), roughly four times per week. The flight takes about 30 minutes. This is the practical choice for most visitors, particularly given that the bus alternative from Vientiane is a 12 to 13-hour journey over a winding mountain road.

From Luang Prabang, a daily minivan service runs and takes 10 to 11 hours. The road is scenic in the way that means steep drops, tight bends, and several hours of complete concentration if you are driving. If you are not driving, it is fine.

Once in Phonsavan, hire a motorbike from your guesthouse or arrange a tuk-tuk driver for a full day. Getting between sites independently on a motorbike is straightforward and cheap. A guided day tour covering Sites 1, 2, and 3 typically costs around $15 to $25 per person and makes sense if you want someone to explain context at each site.

Where to Stay

Phonsavan is a small town rebuilt after the bombing destroyed most of the original settlement of Muang Khoune (the old capital, now a separate ghost-town site worth visiting). The accommodation is basic by regional standards and excellent value.

Vansana Plain of Jars Hotel is the most established mid-range option: spacious rooms, reliable hot water, and a central location that makes early-morning starts for the sites straightforward. Budget around $30 to $50 per night.

For budget travellers, Phousy Guesthouse and similar family-run places offer clean rooms with basic facilities for $10 to $20. The hospitality is warm and the breakfasts are often better than at the larger hotels.

Where to Eat

Phonsavan is not a culinary destination, but the Lao food here has a regional character. Khao poon, a spicy fermented fish and vermicelli soup with a broth that will wake you up, is the local speciality and found at most Lao restaurants.

Nisha Restaurant is reliable for Lao dishes, friendly service, and a low-key atmosphere. Craters Restaurant, named without ambiguity for the local geography, is popular with travellers for its mix of Lao and Western options. For an early morning bowl of pho or noodle soup, walk to the morning market near the town centre: you will find vendors from around 6am with fresh broth that is better than anything served in the restaurants.

The Old Capital and Hot Springs

Muang Khoune, the old capital of Xieng Khouang province, is about 35 kilometres from Phonsavan and takes an hour by motorbike or tuk-tuk. The town was destroyed by bombing and most of it was never rebuilt. What remains is a collection of ruined temples, crumbling colonial buildings, and several large bronze Buddhas that survived the air war partly by burial. It is quiet, melancholy, and almost entirely free of other tourists.

Near Muang Kham, about 45 kilometres from Phonsavan, hot springs emerge from the ground at a temperature appropriate for bathing. Jar Site 23 is nearby. Combining both in a half-day loop makes sense if you have a second day on the plateau.

The sunsets here are worth what the original post said: find a clear hilltop above Phonsavan around 6pm. The plateau is high enough that the horizon is wide and the light goes pink and gold across the landscape for a good 20 minutes. There is nothing competing for your attention.