Hidden within a quiet pine forest near Zernikow in northeastern Germany lies what appears, at ground level, to be an unremarkable stretch of woodland. Surrounded by dense greenery and orderly rows of trees, the area blends seamlessly into the surrounding forest landscape. Yet concealed within the canopy is a far more unsettling feature: a roughly 0.89-acre grove deliberately arranged to create a disturbing symbol visible only from the air.
For many years, the design remained largely unnoticed, hidden beneath the forest cover and effectively camouflaged by the very trees used to shape it. Its eerie presence transformed an otherwise peaceful landscape into the site of a deeply unsettling secret concealed in plain sight.
The origins of the 140 larch trees that formed this symbol remain uncertain. Most accounts suggest they were planted about a year before World War II began. These larch trees stood out because they changed color in both the fall and spring, unlike the surrounding evergreens. For just a few weeks each year, they briefly revealed a hidden message.
People are still speculating why these trees were planted. One idea is that they were planted to celebrate the Führer’s birthday, but there’s no solid proof for this. Another theory suggests that a local resident planted them to honor someone who was sent to the Sachsenhausen prison camp for secretly listening to the BBC. A different story comes from a farmer who remembers, as a child, being hired by a forester to plant the larches.
After World War II, the design of the forest—only visible from the air—was mostly forgotten. During the Soviet occupation of East Germany, private flights were banned, so no one could see it from above. Also, since the area was north of Berlin, commercial flights rarely passed over it.
Even so, it’s thought that the Soviets were aware of the symbol but chose not to remove it.
After the reunification of Germany, aerial surveys were conducted across public lands—including a dense forest in the country’s northeast. During one of these surveys, officials spotted a disturbing formation: a swastika made up of over 100 larch trees, their golden color contrasting sharply with the surrounding evergreens. Visible only from above, the symbol raised concerns that it could become a pilgrimage site for extremists.
In 1995, officials took steps to eliminate the disturbing formation, dispatching forestry workers armed with chainsaws to remove 43 trees from the site. Despite the effort, the outline remained partially visible from the air. After Reuters renewed public attention on the story in 2000, mounting concern prompted authorities to act again. Later that year, crews cut down an additional 25 trees, finally erasing the symbol from the forest canopy.
The discovery was not unique. Comparable tree formations—many believed to originate from the Nazi Germany era—have been identified in other parts of Germany and even in Kyrgyzstan. The exact purpose behind these groves remains uncertain. Some historians believe they may have been planted by forced laborers, while others connect them to political developments such as the Molotov–Ribbentrop Pact. Another theory suggests the arrangements were intended as covert markers or long-term signals, designed to convey symbolic messages long after the war had ended.