Suomenlinna or Sveaborg, until 1918 Viapori, is an inhabited sea fortress built on six islands and which now forms part of the city of Helsinki, the capital of Finland.
Olavinlinna is a 15th-century three-tower castle located in Savonlinna, Finland. It is the northernmost medieval stone fortress still standing.
An aurora, sometimes referred to as a polar light or northern light, is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions.
Hämeenlinna is a city and municipality of about 68,000 inhabitants in the heart of the historical province of Häme in the south of Finland.
Korkeasaari is an island in Helsinki, Finland where the country's biggest zoo is situated. The English name of the zoo is Helsinki Zoo.