Norman Foster has declared that the stepped 41-storey office tower his firm has designed for New York's Park Avenue will "set new standards for workplace design", as the building tops out in the city. More about Foster's 425 Park Avenue skyscraper tops out in New York
Snøhetta has revealed an updated proposal for the overhaul of Philip Johnson's AT&T Building, after a major backlash against its initial scheme resulted in the postmodern tower gaining landmark status. More about Snøhetta updates proposal for Philip Johnson's AT&T Building
Foster + Partners' super-skinny residential skyscraper in Midtown Manhattan features a ribbed glass exterior and plenty of luxury amenities. More about Foster + Partners' skinny New York skyscraper rises beside Seagram Building
The wavy bands that will stretch up this residential tower, which US firm Studio Gang has designed for Honolulu, are based on the shapes of sugarcane plants. More about Studio Gang reveals undulating Kō'ula luxury tower for Hawaii
New York firm SHoP Architects' regeneration plans for a former department store in Downtown Detroit, which include building the city and state's tallest tower, have undergone dramatic revisions. More about SHoP refreshes design for Hudson's Detroit skyscraper
The controversy surrounding the site of Santiago Calatrava's ill-fated Chicago Spire continues, as the city stalls the pair of skyscrapers that SOM's David Childs has proposed for the vacant waterfront plot. More about SOM's "sister skyscrapers" for doomed Chicago Spire site halted
Long associated with Wall Street and World Trade, the densely packed southern tip of Manhattan is now becoming a sought-after place to live. Here are eight towers under construction or recently completed in FiDi that offer high-rise living Downtown. More about Residential skyscrapers on the rise in Manhattan's Financial District
Watch towers by Rafael Viñoly, Richard Meier and KPF rise in this time-lapse video, which shows that the Waterline Square development on Manhattan's Upper West Side is almost complete. More about New York's Waterline Square skyscrapers climb in time-lapse movie
Construction images reveal that the world's skinniest skyscraper, 111 West 57th by SHoP Architects, has gained supertall status. More about SHoP Architects' skinny New York tower passes supertall height
US architecture firm Studio Gang has revealed new renderings of a 40-storey apartment building in San Francisco, which will feature reinterpretations of the city's "classic bay windows" spiralled around its exterior. More about Studio Gang's Mira tower in San Francisco to feature twisting bay windows
Philip Johnson's postmodern AT&T Building has been awarded landmark status, halting Snøhetta's controversial renovation plans for the Midtown Manhattan skyscraper. More about Snøhetta plans nixed as Philip Johnson's AT&T Building gains landmark status
Global architecture firm Kohn Pedersen Fox has completed a high-rise condo building on the San Diego waterfront, with a curved glass form that stands out from the city's boxy towers. More about KPF adds Pacific Gate residential skyscraper to San Diego skyline
British architect David Adjaye believes that the textured concrete exterior of his skyscraper for Manhattan will make it ideal for close-up drone photography. More about 130 William skyscraper for New York will be "great for drones" says David Adjaye
Newly released construction photographs show the progress of French architect Jean Nouvel's first New York skyscraper: a supertall tower rising above the city's Museum of Modern Art. More about Jean Nouvel's 53W53 tower tops out over New York's MoMA
Architecture firm Rogers Stirk Harbour + Partners has completed the construction of Three World Trade Center in Manhattan, which is now the city's fifth-tallest building. More about Rogers Stirk Harbour + Partners officially completes Three World Trade Center in New York City
Two "sister skyscrapers" designed by architect David Childs have been unveiled for Chicago's waterfront, nearly 10 years after work on Santiago Calatrava's ill-fated Chicago Spire halted on the same plot. More about Pair of skyscrapers proposed for site of Calatrava's doomed Chicago Spire
Images of a mixed-use development for Miami by Uruguayan architect Rafael Viñoly show a pair of perpendicular towers connected at the top by a wedge-shaped sky bridge. More about Rafael Viñoly plans angled residential towers for One River Point in Downtown Miami
A skyscraper by architecture firm Adrian Smith + Gordon Gill is set to rise next to Chicago's historic Tribune Tower and become the second-tallest building in the city. More about Chicago's second-tallest skyscraper planned beside Tribune Tower
BIG has released new renderings of the pair of towers it is building beside New York's High Line, which architect Bjarke Ingels says are shaped out of "mutual courtesy" for one another's views. More about The XI towers in New York will "dance" with each other, says Bjarke Ingels
American firm Studio Gang has unveiled plans for a tower in Los Angeles with a curvy exterior evocative of a rolling wave. More about Studio Gang designs curvaceous tower for LA's Chinatown