Gyeongju Historic Areas

Start with the grass. All around you, smooth green mounds rise from the flat ground like sleeping hills. Some are low and gentle. Others stand taller than the trees beside them. In the early morning, mist sits in the hollows between them, and the only sounds are footsteps on gravel and the call of a magpie somewhere overhead. These are not hills at all. They are tombs, and you are walking through the heart of an ancient royal city.

Welcome to the Gyeongju Historic Areas. For close to a thousand years, this valley in southeastern Korea was the capital of the Silla kingdom. Silla began as a small state around the first century before Christ and lasted until the tenth century. That is one of the longest-ruling dynasties in world history. In 2000, UNESCO listed these sites as a World Heritage area. Koreans often call Gyeongju a museum without walls, and once you start walking, you will understand why.

The listing is not one single site. It is a group of five separate zones spread across the city and its hills. There is the Tumuli Park area, where you may be standing now. There is the Wolseong area, with its old palace grounds. There is the Hwangnyongsa area, home to a great vanished temple. There is the sacred mountain of Namsan to the south. And there is a mountain fortress to the east. Together, they trace the life of a capital — its kings, its faith, its defences.

Let us return to the mounds. Silla royalty were buried in a particular way. Builders placed a wooden chamber in the ground, then piled river stones over it, and finally covered everything with thick layers of earth. Over time the wood rotted, and the heavy stones collapsed inward. This made the tombs very hard for robbers to reach. Here is the surprise — because of this design, many Silla tombs survived with their treasures still inside.

One tomb in this park is open for visitors to enter. It is known as Cheonmachong, the Heavenly Horse Tomb. When archaeologists excavated it in the 1970s, they found a gold crown, jewellery, and weapons. They also found a painted saddle flap made of birch bark. On it, a white horse gallops through the air, its mane and tail streaming out behind it. It is one of very few paintings to survive from the Silla period, and it gave the tomb its name.

Those gold crowns deserve a moment. Silla crowns are thin sheets of gold, cut into upright shapes that look like branching trees or antlers. Small pieces of jade, curved like commas, hang from them alongside tiny golden discs. When the wearer moved, the crown would shimmer and tremble. Many historians link the tree shapes to older beliefs from northern Asia, before Buddhism arrived. Several crowns are now in the national museum here in the city.

Now walk a short distance and you reach a small stone tower in an open field. This is Cheomseongdae. It was built in the seventh century, during the reign of Queen Seondeok, one of the first queens to rule in Korean history. It is widely described as the oldest surviving observatory in East Asia. The tower is shaped like a bottle, made from curved rows of granite blocks. A square window sits halfway up its side.

Scholars still debate exactly how Cheomseongdae was used. Some believe astronomers climbed in through the window and watched the stars from the top. Others think it was more symbolic, a structure tied to the calendar and the seasons. Many guides point out that the stone blocks may be arranged in numbers linked to the days of the year, though this is an interpretation rather than a proven fact. Either way, it has stood here through earthquakes and wars for well over a thousand years.

Just beyond, a quiet grove of old trees grows close together. This is Gyerim, a forest tied to one of Silla's founding legends. According to the story, a golden box was found hanging from a branch here, while a white rooster crowed beneath it. Inside the box was a baby boy. He became the ancestor of the Gyeongju Kim clan, one of the great families of Korea. It is folklore, but locals still treat this grove with respect.

Further on, the ground rises gently into a long, curved ridge. This was Wolseong, which means moon castle. Its name comes from its crescent shape. Royal palaces once stood on top, protected by the ridge and by a river running along one side. Today you mostly see open lawns and excavation areas, because archaeologists are still working here. Nearby is Donggung Palace and Wolji Pond, where rebuilt pavilions reflect in dark water. After sunset, the lights there make the reflections especially clear.

In the Hwangnyongsa area, the most important building is one you cannot see. Hwangnyongsa was the largest temple in Silla, and it once had a nine-storey wooden pagoda. For centuries, it was one of the tallest structures in East Asia. In the thirteenth century, Mongol invaders burned the temple to the ground. Today only the stone foundations remain, laid out across a wide field. Standing among them, you can still sense how enormous the temple must have been.

To the south rises Namsan, the southern mountain. For Silla Buddhists, it was a holy place. Its slopes hold a remarkable number of carved Buddhas, stone pagodas, and temple sites, many hidden along forest trails. Some figures are cut directly into the granite cliffs. Others have lost their heads over the centuries. Hiking Namsan feels less like visiting a museum and more like discovering a forgotten world. Two other great Silla sites, Bulguksa Temple and Seokguram Grotto, are listed separately by UNESCO.

It is worth remembering what this city meant. In the seventh century, Silla brought most of the Korean peninsula under one rule for the first time. Gyeongju then became the political and religious centre of that larger state. Ideas, goods, and Buddhist teachings travelled here along trade routes linked to China and beyond. When Silla finally fell in the tenth century, the capital moved elsewhere. Gyeongju became quieter, and that quiet helped protect much of what you see today.

Before you leave, stand still for a moment among the mounds. Notice how the city around you keeps its buildings low, so these royal tombs still shape the skyline. Listen to the cyclists passing, the children running up to the fences, the wind moving through the pine trees. These kings and queens chose to rest in the middle of their city, not far away from it. As you walk on, look back once more — the green shapes are still there, keeping watch.