In Crimea, in the Nikitsky Botanical Garden, grows Herodotus' olive tree, which is at least 700-800 years old. In Kolomenskoye, oaks are growing that are believed to have been planted by Dmitry Donskoy himself after the Battle of Kulikovo. This means they are over 600 years old. Tsar Alexei Mikhailovich strolled among them, and Peter I learned to read and write under these trees. It is possible that these are the oldest trees in Moscow. On Lake Baikal grows the oldest tree in Russia — the "Guardian of Olkhon." According to specialists from the Center for Tree Expertise "Healthy Forest," it is 781 years old! In Khakassia, there is a long-living cedar — it is 757 years old! This tree was considered sacred by the local people and was associated with immortality. The oak growing on the Holy Hill of the Pskovo-Pechersk Dormition Monastery is 602 years old! It has witnessed the construction of the monastery.