Category
page 1Military installations closed in 1973
Suomenlinna
Suomenlinna (), or Sveaborg (), is a sea fortress composed of eight islands, of which six have been fortified. Located about southeast of the city center of Helsinki, Finland, Suomenlinna is a popular destination for both tourists and locals, who enjoy it as a picturesque picnic site.
Forte Gonzaga
fort in Messina, Italy