Vyborg

Vyborg (Russian: Вы́борг; Finnish: Viipuri; Swedish: Viborg; German: Wiborg) is a town in Leningrad Oblast, Russia, situated on the Karelian Isthmus near the head of the Bay of Vyborg, 130 km to the northwest of St. Petersburg, 38 km south from Russia's border with Finland, where the Saimaa Canal enters the Gulf of Finland. Population: 79,224 (2002 Census)

Source : Wikipedia

Vyborg is the main border town on the Helsinki (capital of Finland) - St Petersburg (Russia) road, a lovely 13-th-century city filled with old buildings, winding cobblestone streets, a romantic, if dishevelled harbour, and a sprawling, magnificent park.
Source: Lonely Planet Guidebooks

One of the oldest cities in Europe, Vyborg's central feature is the imposing medieval Vyborg Castle, built by the Swedes in 1293 when they first captured Karelia from Novgorod. Since then borders have jumped back and forth around Vyborg.
Source: Lonely Planet Guidebook

Peter the Great added it to Russia in 1710. A century later it fell within autonomous Finland, and after the revolution it remained part of independent Finland (the Finns call it Viipuri)
Stalin took it in 1939, lost it to the Finns and Germans during WWII, and on getting it back deported all the Finns.

Today it's a laid-back, Finnish-looking city full of Russian fishers, timber-haulers, military men, and the usual border-town shady types. A good city history and nice photos are at
www.towns.ru/towns/ viborg_e