![From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/10/03/10/33932856-8800919-image-a-23_1601717775684.jpg)
From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online
![From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/10/03/10/33932550-8800919-image-a-15_1601716732203.jpg)
From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online
![From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/10/03/10/33933342-0-image-a-37_1601718967173.jpg)
From UFO treehouses to ice hotels - and bone chilling Arctic baths, Sweden's cool all year round! | Daily Mail Online
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