The Crooked Forest is a grove of oddly-shaped pine trees located in the village of Nowe Czarnowo near the town of Gryfino, West Pomerania, in north-western Poland. It is a protected natural monument of Poland.
From the base, the pine trees grow with a 90-degree sharp bend northward but then curve back to grow straight up into the sky. Despite the unnatural curves bending three to nine feet sideways at their bases, these trees are generally healthy and grow up to 50 feet tall.
The existence of the Gryfino Forest in Poland is a mystery. The area was first discovered by a forester who happened upon it during an expedition in 1928. It’s been debated for many years why these curved trees are like this, with various theories ranging from natural causes to deliberate human intervention.
This grove of 400 pines was planted in the village of Nowe Czarnowo around 1930. Each pine tree bends sharply to the north, just above ground level, then curves back upright after a sideways excursion of three to nine feet (1–3 m). The curved pines are enclosed by a surrounding forest of straight pine trees.
It is generally believed that some form of human tool or technique was used to make the trees grow or bend this way, but the method has never been determined and remains a mystery to this day. It has been speculated that the trees may have been deformed to create naturally curved timber for use in furniture or boat building. Others surmise that a snowstorm could have bent the trunks, but there is little evidence of that.
The forest was featured in season 1, episode 4 of The UnXplained on the History channel titled “Unnatural Nature” that first aired on 9 August 2019. The site is open to the public and serves as a notable tourist attraction in the region.
According to Wikipedia