Hotel

Back in March, we reported on a remarkable new spherical treehouse-style hotel designed by the Bjarke Ingels Group that was to be covered in birdhouses. The one-of-a-kind getaway is now complete and has opened to visitors in Sweden.

Miami is slated to gain its new tallest skyscraper in the form of the Waldorf Astoria Miami. Taking the shape of stacked glass blocks and rising to a height of 1,049 ft, the eye-catching building will consist of a hotel and luxurious residences.

BIG has produced a lot of out-of-the-box designs, but the firm's latest project is one of its most unusual. Looking like a large pinecone suspended among the trees, the Biosphere will offer a small treehouse-style hotel room covered in 350 birdhouses.

Commissioned to design a pair of hotels, Büro Ole Scheeren took on the challenge with typical ambition. Instead of creating two separate towers, the firm will stack six large curving structures into one unified high-rise and cover it in greenery.

Work has begun on an ambitious hotel that will be part-built into a mountain. The rock that's excavated during the build process will be reused to create the luxury hotel suites, which will offer choice views of the stunning Arabian landscape.

Studio Puisto has completed a modular eco-hotel concept, made up of three U-shaped dwellings located in Finland's Kytäjä Golf. Each prefabricated module hosts three suites and is designed to be transported on the back of a standard truck.

Commissioned to design a sustainable floating hotel, Margot Krasojević Architects produces a proposal that's unconstrained by practicalities. The designer envisions making use of the massive amounts of plastic in the ocean as a building material.

Hired to breathe new life into a drab 1970s hotel, Sou Fujimoto Architects decided on an out-of-the-box approach that involved renovating the aging space, while also adding an eye-catching new building that takes the form of a grass-covered hill.

Qatar isn't lacking in notable architecture but a new floating hotel would be a head-turning addition to the country. Named the Eco-Floating Hotel, it would rotate in place like a revolving restaurant and boast wind, solar, and tidal sustainability.

Foster + Partners has created another hotel for the ambitious Red Sea Project in Saudi Arabia. Southern Dunes will get electricity from a huge 1.2-gigawatt battery system and is designed to withstand the harsh conditions in the Arabian dunes.

Studio Gang is no stranger to unusual designs and its latest project is another head turner. Named Populous, the mixed-use hotel will boast sustainability features such as solar power and a green roof, and is expected to be completed by 2023.

Thin is in when it comes to skyscraper design, with skinny luxury towers increasingly seen as viable in crowded cities. However, the Pencil Tower Hotel makes other thin towers look chunky as it will measure just 6.4 meters in width.