Next to the Kranj grammar school stands a giant sequoia (Sequoiadendron giganteum) that is a protected natural monument. The top of this 27-metre high tree leans about five metres from its vertical line. The car park located below the sequoia, which is on the side the tree is leaning, is damaging the vitality of the tree. Because of the pressure of the vehicles in the car park the ground has less air and water, and at the same time the vehicles in the car park increase the pressure on the roots, causing the tree to lean even more. There was a great danger the tree would fall. To preserve this unique natural monument, the Regional Unit of the Institute for the Protection of Nature of the Republic of Slovenia proposed that the tree should be secured by steel to the grammar school building so as to prevent it from leaning further. A prior study showed the trunk of the tree to be vital. The tree was secured to the grammar school building in the spring of 2003.