Lisbon Island, Portugal – $310 Million
Yes, you read that amount correctly. For $310 million you could be the owner of the extraordinary location of Lisbon Island off the coast of Portugal. Despite being situated so near to the vibrant city of Lisbon, this remains a stunning island offering the perfect balance between privacy and nearby civilisation. It’s also the biggest island on this list, weighing in at an incredible 3000 acres. It’s definitely a case of high price, high reward with this one.