Externsteine

Listen for a moment. Wind moves through beech trees on the slope behind you. Water laps softly at the edge of a still pond. Above it all, a row of grey sandstone pillars rises out of the forest floor. The rock is cool and gritty under the hand. In places it is streaked with green moss and dark lines left by centuries of rain. You are standing at the Externsteine, in the Teutoburg Forest of northwestern Germany.

First, a little geology, because everything here begins with stone. These pillars are sandstone, laid down as sand on the floor of an ancient sea during the age of the dinosaurs. Over millions of years, the Earth's crust pushed these layers upward and tilted them until they stood almost vertical. Wind, frost and water then wore away the softer rock around them. What remained is this chain of towers, each one shaped by time rather than by any human hand.

Look up at the tallest pillars. Some rise roughly as high as a ten-storey building. Their surfaces are not smooth. You can see ridges, cracks and hollows where water has worked into weaker seams. One block high on a pillar looks as if it could tip at any moment. Locals have watched it balance there for generations. It is a reminder that this landscape is still changing, even if the change is too slow for us to see.

People have been drawn to this place for a very long time. Archaeologists have found stone tools in the area from the Stone Age, left by hunters who passed through when the climate was much colder. We do not know what those early visitors thought of the rocks. We only know that they stopped here. That simple fact connects you to them. Like you, they stood beneath these pillars and looked up.

The clearest human story begins in the Middle Ages. In the late eleventh century, the site came under the control of a Benedictine monastery in the city of Paderborn. Monks and craftsmen turned the rocks into a place of Christian devotion. They cut rooms directly into the stone. In one of these chambers, an inscription records the dedication of an altar in the early twelfth century. The forest rocks had become a kind of pilgrimage site.

Now walk to the base of the pillars and find the great carving on the rock face. This is the surprise many visitors walk past too quickly. It is a large relief of the Descent from the Cross, showing the body of Christ being lowered by his followers. It is carved straight into the living sandstone, in the Romanesque style. That is the rounded, solemn style of European art around the eleventh and twelfth centuries. It is one of the oldest large stone reliefs of its kind north of the Alps.

Take a moment with the details. Look for the figure bending under the weight of the body. Notice the bent tree or plant shape beneath the cross, which scholars have interpreted in different ways. At the very top, a figure watches from above, holding what looks like a banner and a small figure in its arms. Lower down, a damaged scene shows two human figures wrapped by a serpent-like creature. Weather has softened the edges, but the faces still carry grief.

Beside the relief, the rock opens into carved chambers. Inside, the light drops and the air cools. The walls show the marks of tools, and the ceilings curve low over your head. Nearby, at the foot of one pillar, lies a hollow cut into the rock in the shape of a body. Many people call it a grave. Its true purpose is uncertain. Some believe it was used to represent the tomb of Christ for pilgrims who could never travel to Jerusalem.

High on one of the pillars sits another small chamber, reached by steep steps and a narrow bridge. In its wall is a round opening. A popular claim says this window lines up with the rising sun at the summer solstice. Researchers still debate whether this was planned or a coincidence. Either way, every year on the longest day, crowds gather here before dawn. Some come for the view. Others come with their own beliefs about the meaning of the stones.

That brings us to a darker chapter, and it matters. In the early twentieth century, some writers claimed the Externsteine had been a great pagan sanctuary of the ancient Germanic tribes. In the 1930s, the Nazi regime embraced this idea and sponsored excavations here to support it. The digs did not find the evidence they hoped for. Today historians treat those theories as myth, shaped more by politics than by proof. The site is still watched carefully because of that past.

In later centuries, the rocks served more ordinary purposes. Local rulers of the region of Lippe used the area at different times, and the landscape around you was reshaped. The pond at the base of the pillars was created in the nineteenth century. It turned the rocks into a romantic scene, with reflections that painters and early tourists loved. Walk along the water's edge and you will see the towers doubled in the surface on a calm day.

If you feel steady on your feet, climb one of the stairways cut into the rock. The steps are worn and uneven, and the railings are there for good reason. From the top, the Teutoburg Forest spreads out in every direction, a soft green sea of trees. On clear days you can see far across the hills. Keep in mind that the area is a protected nature reserve. Stay on the marked paths, because the sandstone and the plants on it are fragile.

Before you leave, stand still once more at the base of the pillars. Feel the cool air that seems to collect here even in summer. Listen to the voices of other visitors echoing softly off the stone. Somewhere above you, a crow may call from a ledge. Hunters, monks, pilgrims, painters and travellers have all stood where you are standing. As you walk back along the path, turn around once. The rocks will still be there, grey and silent, as they have been for millions of years.