Barcelona studio BCQ chose translucent plastic panels for the walls of this municipal sports hall in Spain, giving the building an ethereal quality that helps it match the colours of the sky (+ slideshow). More about BCQ completes sports hall with translucent polycarbonate skin
Designer Thomas Heatherwick has won planning permission to convert a Victorian coal yard in London's King's Cross into a canal-side shopping destination. More about Heatherwick gets go ahead for canal-side shopping centre in London's King's Cross
A 101-metre slide winds down through this coiling structure by Fránek Architects, perched on a mountain in the Czech Republic (+ slideshow). More about Fránek Architects' mountainside Sky Walk loops up around a giant slide
The Tower of London's famous resident ravens have a new home in a set of oak and mesh-encased aviaries designed by local firm Llowarch Llowarch Architects (+ slideshow). More about Llowarch Llowarch Architects completes raven enclosure for the Tower of London
A flight of stairs wraps around the exterior of this mixed-use concrete tower in Seoul's busy Gangnam district, freeing up prime rental space on the ground floor (+ slideshow). More about Sae Min Oh designs irregularly shaped block in Seoul as a "three-dimensional street"
Architecture office NBBJ has unveiled a concept for a series of natural ice rinks on London's River Thames that emerge from below the water's surface. More about Flower-like ice rinks proposed for London's River Thames
Vietnamese studio Vo Trong Nghia Architects has built a community centre of eight pavilions, each with intricate bamboo structures and thatched rooftops (+ slideshow). More about Vo Trong Nghia creates bamboo and thatch domes for Diamond Island Community Centre
Brazilian architect Isay Weinfeld has been commissioned to convert The Shore Club, a historic hotel in Miami's South Beach, into a luxury complex with condominiums, hotel rooms and poolside bungalows. More about Isay Weinfeld unveils latest designs for update of historic Shore Club in Miami's South Beach
US firm Aranda\Lasch has completed a store for fashion designer Tom Ford in the Miami Design District, featuring an angular facade that references bold Art Deco motifs (+ slideshow). More about Aranda\Lasch creates pleated concrete facade for Tom Ford flagship Miami store
Japanese studio SANAA has seen off competition from Norwegian firm Snøhetta to design a new national gallery in Budapest's City Park. More about SANAA chosen over Snøhetta in Budapest gallery competition
Paris-based JUNG Architectures has converted a former French leper colony into a gallery, adding an zinc-clad extension that can be used for wine tasting (+ slideshow). More about JUNG Architectures adds zinc-clad extension to former leper hospital
This miniature wooden library for a Toronto suburb is designed to provide a public reading nook and book exchange, and folds into a box at night for security (+ slideshow). More about Atelier Kastelic Buffey creates miniature book exchange that folds up into a glowing black box
Malaysian architect Eleena Jamil has built a bamboo pavilion in Kuala Lumpur's botanical gardens, featuring tree-like columns and a floor made up of 31 elevated platforms (+ slideshow). More about Bamboo playhouse by Eleena Jamil built on a lake island in Kuala Lumpur's botanical gardens
Dutch architecture studio MVRDV is to replace a flooded shopping centre in the Taiwanese city Tainan with a lagoon to create a "hip urban pool" and artificial beach (+ slideshow). More about MVRDV unveils plans for sunken lagoon park in Taiwan
The industrial harbour of Swedish city Gothenburg is the setting for this sauna by Raumlabor, which features a rusty steel exterior and a warm timber-lined interior (+ slideshow). More about Raumlabor builds industrial-looking sauna above the waters of Gothenburg port
A Victorian gas holder has been converted into a park with a circular lawn and a polished steel pavilion as part of the ongoing redevelopment of King's Cross, London. More about Bell Phillips converts Victorian gas holder into circular park for King's Cross
Foster + Partners has won a competition to redevelop a 35-hectare neighbourhood by the River Nile in downtown Cairo. More about Foster unveils winning masterplan for waterfront Cairo neighbourhood
Paris studio Marchi Architectes has extended a small museum in the French village of Biévres and added a community centre with a series of pitched roofs (+ slideshow). More about Marchi Architectes completes a community centre in the heart of an old French village
World Architecture Festival 2015: a Swedish football club facility with a roof that doubles as spectator seating is the 2015 winner of the Small Project of the Year award at the World Architecture Festival. More about Football club building with rooftop seating wins Small Project of the Year 2015
This undulating course was designed by Canadian firm Kleinfeldt Mychajlowycz Architects to host BMX races during the 2015 Pan American Games (+ slideshow). More about Snaking BMX race track installed in Toronto for Pan American Games