Tsytsin Main Botanical Garden of Academy of Sciences, founded in 1945 is the largest in Europe. It covers the territory of  bordering the All-Russia Exhibition Center and contains a live exhibition of more than 20 thousand species of plants from around the world, as well as a lab for scientific research. It contains a rosarium with 20 thousand rose bushes, a dendrarium, and an oak forest, with the average age of trees exceeding 100 years. There is a greenhouse taking up more than  of land.