Kadriorg Palace was designed in 1718 in Baroque style by Italian architect Niccolo Michetti at the request of the Russian Tsar Peter the Great who intended to use the palace as a summer residence. It was originally named Catherinethal (Catherine's valley) after the tsar's second wife, Catherine I of Russia. The Estonian name Kadriorg was used since the 20th century (Catherine is "Kadri" in Estonian). Today the palace houses the foreign arts division of the Art Museum of Estonia featuring notably Flemish and Russian works.

Alexander Nevsky cathedral, the Russian orthodox cathedral located in the old town of Tallinn, the capital of Estonia.