The spiral-shaped glass tower designed by architecture studio NBBJ for Amazon's second headquarters has been given permission to be built in Arlington, Virginia. More about Spiral Amazon HQ2 gets go-ahead to be built in Virginia
American firm CookFox Architects has completed a pair of tall, connected buildings with gridded facades for a Williamsburg site that once held an iconic sugar factory. More about CookFox releases photos of linked skyscrapers at Brooklyn's Domino Sugar Refinery
Studio Odile Decq has completed a 30-storey luxury residential tower in Barcelona, featuring curved balconies that are coloured red on the upper floors to give the building a distinctive presence on the skyline. More about Red balconies top Odile Decq's Antares tower in Barcelona
Japan-based architecture firm OSO has released a plan to suspend a Boeing 747 aircraft between two towers in a downtown Seattle complex designed by Henriquez Partners Architects. More about OSO to suspend Boeing 747 jumbo jet aircraft between two buildings in Seattle
Design studio MAWD has redone the interiors of an IM Pei tower in Denver, Colorado, including the lobby and an adjoining Philip Johnson-designed atrium. More about MAWD revamps lobby and atrium of Denver tower designed by IM Pei
ERA Architects has refurbished a postwar social housing building in Hamilton, Ontario, making it the largest residential building in the world to achieve Passivhaus EnerPHit certification. More about Tower in Ontario becomes world's tallest retrofitted Passivhaus structure
Architecture studio Tonkin Liu has completed a biomimetic tower containing flues for a low-carbon energy centre in Manchester, England, along with a sculptural wall made from organically-shaped tiles. More about Tonkin Liu creates nature-informed tower for Manchester's Civic Quarter
Architecture studio Adjaye Associates has designed a plant-covered building called Timber House as part of a developement on Toronto's waterfront that will include buildings by Alison Brooks Architects and Henning Larsen. More about Adjaye Associates designs mass-timber building covered in plants for Toronto's waterfront
Dutch studios IND [Inter.National.Design] and Powerhouse Company have completed the Çanakkale Antenna Tower, a broadcasting and observation tower made from Corten steel to contrast a surrounding forest. More about Looping Corten-steel broadcasting tower built in Turkey
Architecture studio CetraRuddy has created a skyscraper informed by New York's Rockefeller Center with a chevron-patterned facade that pays homage to the surrounding art deco buildings. More about CetraRuddy completes art deco skyscraper topped with "sculpted crown" in New York
David Adjaye's upside-down supertall skyscraper proposal for New York has raised eyebrows, but it's not the only tall building that increases in size as it rises. Here is a roundup of 10 other top-heavy buildings. More about Ten top-heavy buildings that are bigger at the top than the bottom
American office ODA has released renderings of a residential building with cantilevered upper storeys, scheduled to be built on Manhattan's Upper West Side. More about ODA designs Manhattan tower that increases size as it ascends
American firm S9 Architecture has completed a tall residential building in a post-industrial New York neighbourhood, incorporating design elements that "pay homage to the past". More about S9 Architecture creates gridded facade for 111 Varick tower in Manhattan
Architectural viewpoints have been in the news lately with the opening of BIG's helical Marsk Tower and controversy surrounding MVRDV's Marble Arch Mound and Thomas Heatherwick's Vessel. Here are 10 impressive lookouts from Dezeen's archive. More about Ten impressive architectural viewpoints designed to stand out
Danish architecture studio BIG has revealed new images by Rasmus Hjortshøj of Marsk Tower, its spiralling double-helix viewing tower that recently opened to the public in southwestern Denmark. More about New photos show BIG's twisting Marsk Tower
Architecture firm Studio Gang has completed a tiered residential skyscraper with angled glass elements that overlooks Forest Park in St Louis, Missouri. More about Studio Gang designs One Hundred skyscraper with angled facades in St Louis
British architecture studio HTA Design has completed a two-tower housing scheme in Croydon, south London, which the studio says is the world’s tallest residential modular building. More about HTA Design builds "world's tallest modular housing scheme" in Croydon
The latest edition of our Dezeen Weekly newsletter includes a caste entrance modelled on a siege engine. More about A castle entrance features in today's Dezeen Weekly newsletter
Siege engines and market halls informed the design of the Auckland Tower, a larch entrance building and viewpoint that Niall McLaughlin Architects has created for a castle in England. More about Niall McLaughlin Architects models castle entrance tower on siege engine
American architecture studio BarlisWedlick built this outdoor sauna topped by treehouse-style viewing platforms for a cabin in New York's Hudson Valley. More about BarlisWedlick builds sauna topped by tower for Hudson Valley cabin