Following the completion of Jean Nouvel's plant-filled hotel in Barcelona and another in Berlin described by the designers as an "urban jungle", we've compiled a list of unique hotels we'd love to visit (+ slideshow).

1. Underwater hotel room Genberg Underwater Hotels

Holidaymakers can sleep beneath the surface of the ocean at this partially submerged hotel suite in the Zanzibar archipelago.

Located 250 metres off the coast of Pemba Island, the Underwater Room is comprised of a three-storey floating structure.

Windows positioned on every wall allow revellers 360-degree views of the surrounding coral reef and sea life.

2. The Bird's Nest by Incrednin Gsgruppen

This huge nest perched in the trees within a Swedish forest allows visitors the ultimate nature experience.

Surrounding trees support part of the structure and the exterior is covered in twigs.

3. Tree Hotel by Tham & Videgård Arkitekter

A mirrored glass box suspended round the trunk of a tree forms this hotel room.

The mirrored cube reflects the surrounding forest and sky, and can be accessed by a rope bridge.

4. Tree Snake Houses by Luís and Tiago Rebelo de Andrade

Sticking with woodland hideaways, the architects of these structures aimed to "recreate the fantasy of tree houses", by designing spaces that sit amongst the tree branches.

Each structure snakes out between the trees of a park in northern Portugal and offers accommodation for one or two inhabitants.

5. PARKROYAL on Pickering by WOHA

Balconies covered in tropical plants surround this hotel in Singapore.

By adding plant-covered balconies and terraces around the exterior, every guest has a garden view from their room window.

We were lucky enough to visit this hotel in November where Wong Mum Summ of WOHA explained how the Singapore studio tried to recreate geological forms in the architecture of the hotel.

6. Andaz Amsterdam Prinsengracht Hotel by Marcel Wanders

Chandeliers encased inside huge bells and wallpaper that combines fish with cutlery feature inside this hotel by Dutch designer Marcel Wanders.

Combining a mixture of different styles, Andaz Amsterdam is filled with furniture and objects that reference the Dutch Golden Age.

7. Bauhaus Dessau accommodation

What lover of Modernism wouldn't be excited at the chance to spend a night in the world-famous Bauhaus?

We reported in October that the former German Modernist design school had opened its doors to paying guests who can sleep in the former school’s dormitories.

8. Fogo Island Inn by Saunders Architecture

A hotel on stilts was added to the picturesque Fogo Island in Canada last October.

The protruding ends of the building are supported by dozens of narrow columns to minimise the impact on the rocks, lichens and plants that make up the surrounding coastal landscape.

Named Fogo Island Inn, the building is the latest edition to an ongoing arts residency programme being established on the Newfoundland isle.

9. 25hours Bikini Berlin Hotel by Studio Aisslinger

Described by the designers as an "urban jungle", this Berlin hotel features plants throughout the interior.

Vegetation is hung sporadically and even climbs through windows and doorways of the greenhouse-like restaurant.

10. Barcelona hotel by Ateliers Jean Nouvel

We love Barcelona and we'd love to visit John Nouvel's hotel, which is also filled with plants.

Leaf-shaped windows puncture the 27-storey building and the atrium welcomes guests with palm trees and tropical vegetation.

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