Mogao Caves: Buddhist Art, Manuscripts and Pilgrimage at Dunhuang

South-east of the oasis town of Dunhuang, a low cliff of pale conglomerate rises above a dry riverbed and a line of poplars, its face honeycombed with hundreds of doorways. Behind them lie the Mogao Caves, a thousand years of Buddhist shrines cut into the rock, painted from floor to ceiling and filled with clay sculpture, and the place where a walled-up chamber of manuscripts came to light in 1900. UNESCO, which inscribed the caves on the World Heritage List in 1987, describes them as reflecting Buddhist art from the 4th to the 14th century. This guide explains how to read the murals and sculptures, why the Library Cave matters, what made Dunhuang a place of pilgrimage, and how a visit works for mature travellers today. On Day 9 of our 29-day Silk Road small group tour from Xi’an to Tashkent, the group crosses the Gansu desert to the Mogao Grottoes, with a visit afterwards to Crescent Spring and Singing Sands Mountain.

Where are the Mogao Caves, and why here?

The Mogao Caves lie about 25 kilometres south-east of Dunhuang in Gansu Province, in the far north-west of China. Dunhuang sits at the western end of the Hexi Corridor, the narrow strip of habitable land between mountains and desert that funnelled traffic between the Chinese heartland and Central Asia. Under the Han dynasty the region became a frontier command, and the Yumen Pass, established under the Han emperor Wu in the late 2nd century BC, some 80 kilometres to the north-west, marked one of the gateways to the lands beyond. For travellers coming east, Dunhuang was the first town of any size inside Chinese-administered territory; for those heading west, it was the last place to rest and resupply before the desert crossings around the Taklamakan.

That position made the oasis a meeting point for merchants, soldiers, officials and monks, and it explains the wealth that paid for the caves. Our overview of the history and legacy of the Silk Road sets out the wider network of routes, while our guide to the historic Silk Road route through Gansu and Xinjiang follows the Chinese stretch from Xi’an to Kashgar, with Dunhuang near its midpoint.

A thousand years of cave-making at the Mogao Caves

Tradition dates the first cave to 366, when a monk named Le Zun is said to have seen a vision of a thousand Buddhas in golden light on the cliff and began to cut a shrine there. Others followed, and for roughly a thousand years, from the 4th century to the 14th, monks, local rulers, officials, merchants and ordinary families paid for new caves or the repainting of old ones. UNESCO counts 492 caves that are preserved with their decoration, holding about 45,000 square metres of murals and more than 2,000 painted sculptures, and it links the site to artistic exchange between China, Central Asia and India from the Northern Wei (386–534) to the Yuan.

Not every cave was a shrine. The decorated caves are concentrated in the southern part of the cliff, while the northern section holds plainer chambers where, according to UNESCO, monks lived, meditated and were buried; documents in Western Xia, Central Asian and Phags-pa scripts have been found in 243 of them. Walking along the cliff today, you are moving past the remains of a monastic settlement as much as a gallery.

Reading the murals: Buddhist visual culture on the cave walls

Inside a typical decorated cave, every surface is painted. Ceilings carry canopies of lotus and textile patterns; walls are filled with rows of small seated Buddhas, so many that they seem to multiply into infinity, which is the point, and the name Caves of the Thousand Buddhas may come from this repetition. Larger scenes teach. Earlier caves often show jataka tales, the stories of the Buddha’s previous lives, told in strips like a scroll unrolled across the wall. From the Tang dynasty onwards, whole walls are given over to visions of paradise: the Western Paradise of the Buddha Amitabha in Cave 220, for example, is a well-preserved example of a Pure Land painting, crowded with palaces, lotus ponds, musicians and dancers.

Look up and you will usually find the flying apsaras, celestial beings who drift across ceilings and above the Buddhas with scarves streaming behind them, often playing instruments. They have become the emblem of Dunhuang art. Many figures now look darker than their painters intended: some pigments have changed colour over the centuries, so faces and bodies that were once pink or white can now appear grey or brown.

The murals also record the world outside the caves. UNESCO highlights a Sui-dynasty scene in Cave 302 of a camel pulling a cart, an early image of Silk Road traffic; farmers at work and a line of soldiers in Tang caves 23 and 156; and in Cave 61 a 10th-century panorama of the monasteries of Mount Wutai, laid out almost like a map. Cave 323 shows the Han envoy Zhang Qian setting out for the West, the journey that Chinese tradition treats as the opening of the Silk Road. Along the lower walls of many caves stand rows of donor portraits, the men and women who paid for the work, dressed in the fashions of their day and named in painted cartouches. They are a reminder that each cave was an act of devotion and a public statement of family standing at the same time.

Sculpture in clay rather than stone

The cliff at Mogao is a coarse conglomerate of pebbles and gravel, too crumbly to carve into fine statues, so the sculptures here are modelled in clay over wooden frames and then painted. The usual arrangement is a seated Buddha at the back of the cave or in a central pillar, flanked by disciples and bodhisattvas, with guardian kings at the edges. Tang-dynasty figures in particular are admired for their soft, naturalistic modelling and swaying posture.

Two figures are on a monumental scale. The red, multi-tiered wooden façade at the centre of the cliff, now nine storeys high after several rebuildings, shelters the seated Maitreya Buddha of Cave 96, 35.5 metres tall and dated to 695, during the reign of Empress Wu Zetian. In Cave 158, a reclining Buddha some 15.6 metres long depicts the Buddha’s passing into parinirvana, surrounded on the walls by painted mourners. The Dunhuang Academy does not publish which caves a standard visit includes, so neither can be promised on any particular day.

The Library Cave and the Dunhuang manuscripts

On 25 June 1900, a Daoist monk named Wang Yuanlu, who had made himself caretaker of the caves, found a sealed doorway behind the painted wall of a passage. Behind it lay a small chamber, now numbered Cave 17 and known as the Library Cave, packed with bundles of manuscripts, paintings on silk and paper, and textiles. UNESCO describes the find as tens of thousands of manuscripts and relics. The material dates mostly from the late 4th to the early 11th century, and the chamber was walled up some time early in the 11th century; why it was sealed is still debated.

Most of the documents are Buddhist texts, but the cave preserved far more than scripture. There are contracts, loan receipts and account books, government records, medical texts and astronomical charts, Confucian classics and Daoist works, and texts belonging to Manichaean and Christian communities, alongside a Hebrew prayer. The languages read like a roll-call of the Silk Road: Chinese and Tibetan above all, with Sanskrit, Khotanese, Sogdian, Old Uyghur and others. For historians, the ordinary paperwork of a medieval oasis town is as valuable as the sutras.

One celebrated item is a printed copy of the Diamond Sutra, a woodblock-printed scroll about five metres long whose colophon dates it to 11 May 868 and records that a man named Wang Jie had it made on behalf of his two parents. The International Dunhuang Programme, which digitises the Dunhuang collections, describes it as the earliest printed book that carries a date. It is now in the British Library in London. How it and much of the rest of the cave’s contents left Dunhuang in the years after 1900, and why that is still argued over, is the subject of our article on the Silk Road explorers and the collecting expeditions. Today the manuscripts are divided among institutions in Beijing, London, Paris and elsewhere, and many can be read online through the International Dunhuang Programme.

Dunhuang as a place of pilgrimage

Mogao was never simply an art site. Commissioning a cave, a painting or a copied sutra earned religious merit for the donor and for the people named in the dedication, which is why so many caves carry donor portraits and so many manuscripts end with colophons naming the person who paid for them and the relatives they hoped to benefit. The cliff became a focus of devotion for the whole oasis, visited by monks, local families and travellers passing through on the trade routes.

The caves also track Dunhuang’s changing rulers. After the An Lushan rebellion weakened the Tang, the Tibetan Empire held the oasis until 848, when the local general Zhang Yichao expelled the Tibetan garrison. His family, and after them the Cao family, governed Dunhuang with a good deal of independence until the Tanguts of the Western Xia took the town in 1036, and these local ruling houses were among the caves’ great patrons. As Chinese trade shifted to the southern sea routes, Dunhuang declined, and by the time Wang Yuanlu arrived at the end of the 19th century many of the caves were partly buried by drifting sand.

For the Odyssey tour, the visit to Mogao comes after Jiayuguan, at the western end of the Ming Great Wall, and the coach journey across the desert, so the group reaches Dunhuang much as a medieval traveller from the east would have done: from the last fortified gate into the oasis.

How does a visit to the Mogao Caves work?

A standard visit begins not at the cliff but at the Mogao Caves Digital Exhibition Centre, some distance from the caves, which the Dunhuang Academy, the body that manages the site, calls the first stop for every visitor. According to the Academy’s official visitor page, there is no ticket office at the cave area itself and visitors should not drive there directly. A standard ticket combines digital film viewing at the centre with a guided visit to the cave area; at the time of writing, the Academy lists eight caves for a standard visit in the main season and ten in the low season, with a shorter four-cave visit as an alternative. Tickets are checked at the Digital Exhibition Centre and again at the cave area.

Visits are ticketed and managed to protect the paintings, and the Academy notes that the caves close during heavy rain or strong sandstorms. Opening hours, ticket types and the number of caves are set by the Academy and can change, so independent travellers should check the Dunhuang Academy’s official website before planning a visit. On the Odyssey tour, the visit to the Mogao Grottoes is part of the Day 9 itinerary.

Can you take photographs inside the Mogao Caves?

No: the Dunhuang Academy’s visitor rules prohibit photography inside the caves, as well as touching, scratching or writing on the murals and sculptures. Large bags, pets and drones may not be taken into the cave area, and the Digital Exhibition Centre offers free left-luggage storage. The caves are dim, so the way to remember a visit is to look slowly and, if you want images afterwards, to browse the Academy’s digital collections or a good illustrated book.

How much walking is involved at the Mogao Caves?

Expect stairs and dim interiors rather than long distances. The caves open off walkways and stairs at several heights along the cliff face, and some interiors have uneven floors at the thresholds. The tour as a whole is rated Level 2, Moderate: the tour page asks that participants can climb and descend stairs and manage three to five hours of physical activity a day, the equivalent of walking up to 8 kilometres on uneven ground. Crescent Spring and the dunes involve walking on sand.

Are there other Buddhist caves on the Silk Road tour?

Yes: the next stop, Turpan, has the Bezeklik Thousand Buddha Caves beneath the cliffs of the Flaming Mountains, which the tour visits along with the ruins of Gaochang and the Astana Tombs. Comparing the two sites is one of the pleasures of the route. Mogao preserves a sequence of cave-making that runs across a thousand years and many dynasties, and seeing a second, smaller cave site two days later helps to show what was shared along the route and what was particular to each oasis.

Crescent Spring and Singing Sands Mountain

The Mogao day ends among the dunes on the southern edge of Dunhuang. The tour page describes Crescent Spring as a lake in the shape of a perfect half-moon and Singing Sands Mountain as a giant dune said to make the sound of chimes as the wind blows over the sand. With traditional pavilions on its bank and dunes rising steeply on every side, the spring is the classic image of a desert oasis, and it is a reminder of what water meant to the travellers who stopped at Dunhuang.

The Mogao Caves on the tour, Days 7 to 10

Dunhuang falls in the China leg of the tour, after Xi’an, Lanzhou and the Tibetan monastery town of Xiahe. On Day 7 the group takes a high-speed train from Lanzhou to Jiayuguan for the Ming-dynasty fortress at the western end of the Great Wall, the Overhanging Great Wall and the Great Wall Museum. On Day 8 a coach journey brings the group to Dunhuang, where the Great Wall finally peters out into the Gansu desert. Day 9 is the Mogao day, followed by a visit to Crescent Spring and Singing Sands Mountain, and on Day 10 the group continues by high-speed train to Turpan. Our guide to the full Silk Road journey from Xi’an to Tashkent follows the route from China through Kyrgyzstan to Uzbekistan.

An Odyssey Program Leader travels with the group throughout, with English-speaking national guides and local guides along the way to help interpret what you see. The tour is designed for couples and solo travellers.

The Mogao Caves reward a visit made with some background. Once you know who paid for a cave, what a jataka strip is telling you and what lay hidden in the Library Cave for nine centuries, the dim chambers in the cliff become a record of a whole oasis society and its place on the Silk Road. A small group of up to 16 travellers reaches them on the way west from the Great Wall, with the painted caves, the manuscripts’ story and the dunes of Crescent Spring all in a single day.