Bornholm is the result of a merger of the five former (1 April 1970 until 2002) municipalities on the island (Allinge-Gudhjem, Hasle, Nexø, Rønne and Aakirkeby) and the former Bornholm County. Bornholm Regional Municipality was also a county in its own right during its first four years from 1 January 2003 until 31 December 2006. From 1 January 2007 all counties were abolished, and Bornholm became part of the Capital Region of Denmark whose main responsibility is the health service. The municipality still retains its name Bornholm "Regional" Municipality. The island had 21 municipalities until March 1970, of which 6 were
Bornholm Butterfly Park Bornholm Butterfly Park Bornholm Butterfly Park () is located on the western outskirts of Nexø on the Danish island of Bornholm. Over a thousand brightly coloured butterflies from around the world can be seen in a large former hothouse while wild Danish species abound in the flowery garden. The butterfly park was founded in 1997 in a former nursery garden. Visitors can experience the many different species in natural surroundings. Mating can also be seen as well as the development of eggs into caterpillars and chrysalises. In the butterfly house there are also quails which dispose of ants and snails.