Holmestrand, Italy
Langøya is an island in the Oslofjord in Holmestrand Municipality in Vestfold, Norway. The island was the site of limestone mining since the 1650s. The island was bought by Christiania Portland Cementfabrik, who mined the limestone for their cement factory at Slemmestad. By 1985 the island had been
mined out. Since 1993 the island has been as a toxic waste deposit for Norsk Avfallshåndtering.
Listen to the audio guide for Langøya Free on WIP — starts by itself when you arrive, even with the screen off