LA-based architect Clive Wilkinson has drawn up conceptual plans for a giant shared office that would hover above London, enabling people to simply walk upstairs to their mobile workplace. More about Clive Wilkinson suggests "carpet bombing" London with a co-working office in the sky
Three enormous helium balloons supported the hazardous elevated pathway of Olivier Grossetête's Pont de Singe, the letter P in our alphabetical countdown of iconic bridge design. More about Dezeen's A-Zdvent calendar: Pont de Singe by Olivier Grossetête
Beijing studio MAD has completed an opera house in the Chinese city of Harbin, featuring an undulating form that wraps two concert halls and a huge public plaza (+ slideshow). More about MAD's sinuous Harbin Opera House completes in north-east China
Terracotta-coloured tiles clad this house on Belgian farmland, designed by architect Pascal François to match the region's traditional agricultural architecture "without the slightest ambition to be trendy" (+ slideshow). More about Contemporary Belgian barn house by Pascal François is covered in clay tiles
Stripy metal panels wrap the exterior of this Japanese house apart from a section at the front, creating a visual effect that prompted architect Takeru Shoji to name the building after a cardigan (+ slideshow). More about Metal skin wraps the exterior of Niigata residence by Takeru Shoji Architects
These new images by photographer Danica O Kus provide a tour around the exterior of Philharmonie de Paris, the concert hall designed and disowned by French architect Jean Nouvel (+ slideshow). More about New photos offer a closer look around Jean Nouvel's Philharmonie de Paris
It's day 15 in our festive countdown of contemporary bridge design. Today's entry is the eight-kilometre-long Øresund Bridge that connects Danish capital Copenhagen with Swedish city Malmö. More about Dezeen's A-Zdvent calendar: Øresund Bridge by ASO Group
Danish toy brand Lego has released a set of kits that allows architecture lovers to build skylines of cities around the world. More about Lego introduces Skyline building kits for recreating cityscapes
Japanese architects Kengo Kuma and Toyo Ito have designed rival proposals to build the 2020 Tokyo Olympic stadium, replacing Zaha Hadid's competition-winning design. More about Kengo Kuma and Toyo Ito unveil competing bids for Tokyo Olympic Stadium
Oslo studios Koreo Arkitekter and Kolab Arkitekter have transformed an old boathouse on Norway's west coast into a summer house that becomes a glowing beacon by night (+ slideshow). More about Old Norwegian boathouse overhauled to create glowing wooden summer house
The second addition to Dezeen's A-Zdvent calendar by London firm Wilkinson Eyre Architects is a curved suspension bridge in Amsterdam that forks at either end to separate pedestrians from cyclists. More about Dezeen's A-Zdvent calendar: Nescio Bridge by Wilkinson Eyre Architects
New York architect Mark Foster Gage has proposed a 102-storey tower covered in Gothic sculptural elements for Manhattan, in response to the city's supertall skyscrapers that are "virtually free of architectural design" (+ movie). More about Mark Foster Gage proposes elaborate gargoyle-covered skyscraper for New York
These new pictures by photography duo Hufton + Crow reveal the curvaceous form of UNStudio's new transport terminal in Arnhem, the Netherlands (+ slideshow). More about UNStudio's new station for Arnhem photographed by Hufton + Crow
This glass and timber house by Dutch office DP6 Architectuurstudio was designed "like a little black box" with sections of dark larch cladding to help it merge with the surrounding trees. More about DP6 Architectuurstudio completes glass and timber home in a woodland setting
Rocks excavated from the site of this apartment building on the Greek island of Santorini were reused to form terraces and retaining walls so it blends with its mountainous setting (+ slideshow). More about Kapsimalis Architects completes mountainside apartments near Santorini's highest point
A timber box with a pitched roof sits atop the handmade-brick ground floor of this house in the English village of Orford by London studio Nash Baker Architects (+ slideshow). More about Nash Baker Architects combines brick base and gabled timber top for Broad Street House
For the halfway point in our bridge-themed A-Zdvent calendar, we've chosen the Millau Viaduct by Foster + Partners, a colossal bridge that spans a gorge in southern France. More about Dezeen's A-Zdvent calendar: Millau Viaduct by Foster + Partners
A bedroom at this remodelled and extended house in Porto, Portugal, has been wrapped in cork to shield it from the noise of a nearby school playground (+ slideshow). More about ATKA Arquitectos uses cork cladding to minimise noise inside Casa Bonjardim
Rising sea levels are leading to a surge of interest in floating architecture. We've created a new Pinterest board full of the best buoyant buildings, including a proposal for mass housing on London's canals and a conceptual amphibious city in China.
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More about Explore examples of floating architecture on our new Pinterest board
Nicholas Grimshaw has completed a factory in the English town of Melksham for American furniture brand Herman Miller, 40 years after designing the company's first UK production facility (+ slideshow). More about Grimshaw Architects completes third UK manufacturing facility for Herman Miller