Location: N59° 26` 18.6", E24° 47` 27.6"
Kadriorg palace was established by Peter the Great, tsar of Russia, in 1718. The palace was named Kadriorg (in German Catharinenthal) in honour of his wife Catherine I. The building and its abundantly decorated main hall, designed by an Italian architect Nicola Michetti, is one of the most beautiful examples of baroque architecture both in Estonia and in Northern Europe. The festive tsar's palace was surrounded by a 100-hectare French-style garden with fountains, hedges and flowerbeds, planned after the model of Versailles. There were also canals, latticed pavilions and galleries. This was the imperial summer residence of Peter the Great, which was visited by most of the Russian rulers. Great changes in the life and in the interior of the palace occurred in the first half of the 19th century, when Tallinn, which had become a fashionable holiday resort, was often visited by Nicholas I and his family. The palace served as the main building of the Art Museum of Estonia in the 1920s, and again in 1946–1991. In the 1930s, it was the residence of the Head of State of the Estonian Republic. During that period, extensions to palace were added – the banquet hall and orangery; many rooms were redecorated. In 2000, the palace was opened as the Kadriorg Art Museum, which displays the largest collection of old Russian and Western European, especially Dutch and Italian art in Estonia. There are over 6,000 pieces of art in the collection of the museum.
Kadriorg Presidential palace near the historical Kadriorg Palace is the official residence of the President of Estonia. The architect of the administrative building is the same who designed the Song Festival Grounds. The cornerstone of the building was laid by Konstantin Päts, the State Elder of the Republic of Estonia. He started working there in 1938. During the Soviet era the building was the seat of the Presidium of Supreme Soviet of the Estonian SSR.