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Where is it: Eagle Island, Minnesota, US. What is it: Situated on Lake Vermilion, the island measures five acres and has a luxury eco home built of spruce and rock at its heart. Good points: Island living without roughing it, the property comes with a full service marina with condo membership five minutes away on the mainland. The house has a lift, a swimming pool and a second-floor deck with panoramic views to watch the neighbouring eagles. Bad points: Anyone looking for a back to nature experience is likely to be disappointed by the luxury. Price: $1,995,000 (approx £1,532,160). Contact: www.sotherbysrealty.com