Forts in Sweden

Shlisselburg (, ; ; ; ), formerly Oreshek (Орешек) (1323–1611) and Petrokrepost (Петрокрепость) (1944–1992), is a town in Kirovsky District, Leningrad Oblast, Russia, located at the head of the Neva River on Lake Ladoga, east of St. Petersburg. Population:

thumb|300px|Model reconstruction of Nyenschantz and Nyen, which shows the fortress from the west. Nyenschantz (, ; ; ) was a Swedish fortress at the confluence of the Neva River and Okhta River, the site of present-day Saint Petersburg, Russia. Nyenschantz was built in 1611 to establish Swedish rule in Ingria, which had been annexed from the Tsardom of Russia during the Time of Troubles. The town of Nyen, which formed around Nyenschantz, became a wealthy trading center and a capital of Swedish Ingria during the 17th century. In 1702, Nyenschantz and Nyen were conquered by Russia during the Gre

medieval castle on Åland, Sweden

Swedish fortress

fortress just north of Gothenburg, Sweden

fortress built to defend the city Gothenburg against the Danish fleet

Carlsten () is a stone fortress located at Marstrand, on the western coast of Sweden. The fortress was built on the orders of King Carl X of Sweden following the Treaty of Roskilde, 1658 to protect the newly acquired province of Bohuslän from hostile attacks. The site of Marstrand was chosen because of its location and its access to an ice free port. The fortress was decommissioned as a permanent defense installation in 1882, but remained in military use until the early 1990s. == History == thumb|left|200px| Tower. The highest part of the fortress. After peace in Roskilde in 1658, Bohuslän and

small citadel located on the islet Kastellholmen in central Stockholm, Sweden

was built in the late 13th century and was expanded in the late 1500s and early 1600s into a strong fortress, one of the most modern in northern Europe

fortress in Norrbotten County, Sweden

Swedish fortress

Fortress near Loviisa, Finland

Swedish fortification system in WWII

coastal artillery fort and museum, was part of a series of similar facilities built in the 1960's and 1970's as a defence against potential attacks from the Soviet Union.

was built for the defenses against possible Danish attack on Gothenburg from the south and was introduced in 1698 and was fitted with 23 canons.

fort build to protect the inlet to the Stockholm archipelago

was built-in 1687 by Erik Dahlbergh as part of the defenses against possible Danish attack on Gothenburg from the south

Järflotta is an island in Stockholm archipelago, approximately south of Nynäshamn. Once separated from the mainland by a natural sound, this navigable route was rendered unusable in more modern times by post-glacial rebound and has been replaced by the artificial Draget Canal. The island is a nature reserve.