Described as ‘luxury accommodation in bushland surroundings’, Australia's Mira Mira offers three eccentric habitats, all built by the owners. One is an underground cave, accessed through a doorway shaped like a troll’s mouth. Another is a zen retreat with a ‘bush-style’ Japanese garden and the third is a surrealist woodside cabin clearly influenced by Gaudí. As unconventional as it gets.
“Under the sea,” sang Sebastian in The Little Mermaid. “Darling it’s better, down where it’s wetter, take it from me.” He would have loved this hotel then, which is built 12 metres below the surface and is akin to living in an aquarium. Guests can also explore the nearby reef in the three-person submarine placed at their disposal. Just don’t ask how much it costs.
Blink and you’ll miss it: Mirrorcube is one of the rooms at Sweden’s Treehotel, and is essentially a suspended cube surrounded by reflective glass (and infrared film, so the birds don’t crash into it).
Blending perfectly into the surrounding forest, the panoramic views from within make for a remarkable hideaway. And if that puts you in the mood for Nordic style, take a look at the best places to stay in Iceland: an expert's guide.