Ertholmene

Døndalen is a picturesque valley in the northern part of the Danish

Østerlars Church, located 5 km south of Gudhjem on the Danish island o

Joboland, also known as Brandesgårdshaven, is an amusement park with

Hammershus is Northern Europe's largest medieval fortification,

Nexø Museum is the town museum of Nexø on the Danish island of B

Bornholm Butterfly Park (dansk. Bornholms Sommerfuglepark) is located

Lilleborg is a ruined castle in the Almindingen forest in the centre

Gamleborg, also known as Gamleborg Viking Fortress, was the first

San Juan National Historic Site in San Juan, Puerto Rico, includes

The Fortress of Louisbourg (in French, Forteresse de Louisbourg) is a

Lower Fort Garry was built in 1830 by the Hudson's Bay Company on the

Fort Glanville Conservation Park is a registered heritage conservation

South Channel Fort is a 0.7 ha artificial island in southern Port