Hetmanate era of the 17th–18th centuries. Ukrainian Baroque architecture, representative of cossack aristocracy, is distinct from Western European Baroque in that its designs were more constructivist, had more moderate ornamentation, and were simpler in form. During the 17th-18th centuries, most medieval Rus' churches were significantly redesigned and expanded. Additional church domes and elaborate exterior and interior ornamentation were added. Famous examples of Ukrainian Baroque architecture include the Kyiv Pechersk Lavra complex, the Vydubychi Monastery, and the Pochayiv Monastery. Small Cossack churches Crimean Tatar architecture When Crimea was ruled by the Crimean Khanate, the period left several constructions inspired by Islamic motifs. The most famous was the Bakhchisaray Palace, designed by a combined effort of Persian, Turkish, and Italian architects. Late Ukrainian Baroque Sophia Cathedral reconstruction Kyiv Passenger Railway Station Imperial period Russian Empire As Eastern and Central Ukraine became increasingly integrated into the Russian Empire, Russian architects had the opportunity to realize their projects in the picturesque landscape that many Ukrainian cities and regions offered. St. Andrew's Church of Kyiv (1747–1754), built by Bartolomeo Rastrelli, is a notable example of Baroque architecture, and its location on top of the Kyivan mountain made it a recognizable monument of the city. An equally notable contribution of Rastrelli was the Mariinskyi Palace, which was built to be a summer residence to Russian Empress Elizabeth. During the reign of the last Hetman of Ukraine, Kirill Razumovsky, many of the Cossack Hetmanate's towns such as Hlukhiv, Baturyn and Koselets had grandiose projects built by the appointed architect of Little Russia, Andrey Kvasov. Russia, winning successive wars over the Ottoman Empire and its vassal Crimean Khanate, eventually annexed the whole south of Ukraine and Crimea. Renamed New Russia, these lands were to be colonized, and new cities such as the Nikolayev, Odessa, Kherson and Sevastopol were founded. These would contain notable examples of Imperial Russian architecture. Austro-Hungarian Empire Western parts of Ukraine that were once part of the Austro-Hungarian empire host some prominent examples of 19th-century Central European architecture, such as the Lviv Theatre of Opera and Ballet. Vernacular architecture The term vernacular architecture can be used interchangeably with the terms "folk", "common", "native", "traditional" and is usually placed at the other end of the spectrum from professionally designed building by architects. The building knowledge in vernacular architecture is based on local traditions and is thus based largely upon knowledge handed down through the generations. Different