The Kronverk, is a ground fortification for the Sts. Peter and Paul Fortress in Saint Petersburg, in which country?
Peter and Paul Fortress The Peter and Paul Fortress is the original citadel of St. Petersburg, Russia, founded by Peter the Great in 1703 and built to Domenico Trezzini's designs from 1706 to 1740. In the early 1920s, it was still used as a prison and execution ground by the Bolshevik government.
Vysotsk Vysotsk (Russian: Высо́цк ; Finnish: "Uuras" ; Swedish: "Trångsund" ) is a coastal town and a seaport in Vyborgsky District of Leningrad Oblast, Russia, located on the Karelian Isthmus, on the eastern shore of the Vyborg Bay, 12 km southwest of Vyborg and 159 km northwest of St. Petersburg. It hosts a base of the Russian Baltic Fleet and, since 2004, an oil terminal. Population:  (2010 Census) ;  (2002 Census) ;  (1989 Census) In terms of population, it remains one of the smallest towns in Russia.