Intrigued by ghost towns? Look no further than Jussarö, Finland's only one. This island, part of Ekenäs in Raseborg, Finland, holds a unique past. Jussarö is a national park and was once home to a significant landmark - the Jussarö Lighthouse. The island's history goes deeper, marked by a now-closed iron ore mine, once the biggest undersea deposit in Finland, known for causing ships' compasses to go haywire. Until 2005, abandoned military buildings stood as a reminder of the island's use for urban warfare simulations. Jussarö offers a captivating blend of historical intrigue and natural beauty.