The creation and development of the Cadrio District has been influenced by the upper class of Czarist Russia. The streets of the Cadrio District are like unique architectural museums, which integrate different cultures in different centuries. To this day, Cadrio District is also one of the most magnificent and elegant areas in Tallinn, and one of the most popular residential areas in Tallinn. Estonia's presidential palace and many foreign embassies are here. Among the numerous building facilities, the park is a suitable leisure place for all ages in Tallinn. The most famous building in Cadrio is the summer palace, a baroque Garden Palace complex built for the Peter I family of Russian Czar in 1718.