Heathen rites often take place in non-public spaces, particularly in a practitioner's home. In other cases, Heathen places of worship have been established on plots of land specifically purchased for the purpose; these can represent either a "hörg", which is a sanctified place within nature like a grove of trees, or a "hof", which is a wooden temple. The Heathen community has made various attempts to construct hofs in different parts of the world. In 2014 the Ásaheimur Temple was opened in Efri Ás, Skagafjörður, Iceland, while in 2014 a British Heathen group called the Odinist Fellowship opened a temple in a converted 16th-century chapel in Newark, Nottinghamshire. Heathens have also adopted archaeological sites as places of worship. For instance, British practitioners have assembled for rituals at the Nine Ladies stone circle in Derbyshire, the Rollright Stones in Warwickshire, and the White Horse Stone in Kent. Swedish Heathens have done the same at Gamla Uppsala, and Icelandic practitioners have met at Þingvellir.