Peter the Great is a tsar who especially likes fountains. He found that the fountain not only wets the air, lowers the temperature, but also has a strange artistic effect in decorating the city. He also built many fountains in his own official residence, the "Summer Garden" in St. Petersburg. However, unlike the magnificent palace fountains, the fountains are built among the green trees, and the white marble statues are very elegant. Of course, during the Tsarist period, the fountain was only a place for the royal family to entertain and entertain, and the ordinary people were not blessed to enjoy. After the October Revolution, the Soviet government turned these places into parks and opened them free to the people. In addition to this, some new fountains have been built. Moscows national friendly fountains and stone flower fountains can be counted among the best. The National Friendly fountain is a large fountain surrounded by 16 gold-plated statues. Sixteen women dressed in different national costumes represented the 16 republics of the Soviet Union at that time, symbolizing the great unity of the various nations of the former Soviet Union. The "stone flower" fountain is decorated with a natural colored stone (also known as "semi-precious stone") in the Ural Mountains. It symbolizes the rich mineral resources and mining achievements of the former Soviet Union. Both fountains are built in Moscow's "National Economic Achievement Exhibition Center" (Russian short for ""), surrounded by magnificent pavilions. Pools, statues, fountains, colonnades and buildings form a themed garden that fully demonstrates the strength of the country during the Soviet era.