Bygdøy

Bygdøy or Bygdø is a peninsula situated on the western side of Oslo, Norway. Administratively, Bygdøy is part of the borough of Frogner. It historically was part of Aker Municipality and became part of Oslo in 1948.
Bygdøy is a popular recreation area and is among the most fashionable residential areas in Norway, where the most expensive properties in the entire country are found. Bygdøy is also the home of five national museums as well as a royal estate. Wealthy families of Christiania acquired country houses in Bygdøy during the 18th and 19th centuries; by the 19th century Bygdøy had become a favourite of the wealthy in the capital region and was exclusively settled by the wealthy and their servants.