Dutch landscape firm West 8 has masterplanned a new botanical garden in Houston, Texas, featuring a mosaic of gardens and a bridge incorporating an arch of trees. More about West 8 plans botanical garden for Houston featuring an arching tree bridge
London firm Haworth Tompkins has been appointed to lead a major seafront redevelopment in Brighton and Hove, England – eight years after a controversial scheme by California architect Frank Gehry was scrapped. More about Haworth Tompkins chosen to replace Gehry on Brighton seafront redevelopment
Rotterdam studio MVRDV has revealed its design for a shopping centre with a pearlescent facade, which is on target to complete this summer in central Beijing. More about MVRDV unveils pearlescent shopping centre nearing completion in Beijing
COBE has unveiled its masterplan for Christiansholm, an artificial island in Copenhagen harbour formerly occupied by the Danish press (+ slideshow). More about COBE wins contest to redevelop Copenhagen's Christiansholm island
Global architecture firm HOK and Barcelona-based TAC Arquitectes have won a competition to design a 10,000-seat sports arena next to FC Barcelona's Camp Nou football stadium. More about Basketball arena by HOK will be built in the shadow of FC Barcelona's Camp Nou stadium
Spanish architect Santiago Calatrava has won a competition to design an observation tower for Dubai – a landmark that aims to rival the 828-metre-high Burj Khalifa. More about Calatrava wins contest for observation tower in Dubai harbour
Rotterdam studio Monadnock used a variety of brickwork techniques to create the patterned facade of this viewing tower, designed to offer a new landmark for the small Dutch town of Nieuw-Bergen. More about Monadnock's Abstract Tower features patterned walls of red and green brickwork
Korean studio Platform_a has completed a cafe with pivoting mirrored-glass doors and volcanic stone walls on Jeju, a volcanic island off the coast of mainland South Korea (+ slideshow). More about Platform_a completes reflective glass and volcanic stone cafe on Jeju island coast
Set between two plateaus, this Alpine aquatic centre by German firm Auer Weber features wide crescent-shaped windows overlooking the piste of popular ski resort Courchevel (+ slideshow). More about Auer Weber completes aquatic centre with a sloping roof in the French Alps
Japanese designer Tokujin Yoshioka has revealed his own vision for the Tokyo 2020 Olympic stadium, which he was not permitted to enter into the design competition (+ movie). More about Tokujin Yoshioka reveals alternative vision for Tokyo Olympic stadium
Rem Koolhaas' firm has revealed plans to overhaul continental Europe's largest department store, with the addition of a glass rooftop extension and a series of sculptural new staircases (+ slideshow). More about OMA unveils major renovation plans for Berlin's KaDeWe department store
London Eye designer Marks Barfield Architects has reached the final stage in its construction of the UK's highest observation tower outside the capital (+ slideshow). More about "World's first vertical cable car" to open on Brighton beach in summer 2016
London studio Flanagan Lawrence has won a competition to refurbish an outdoor theatre in Szczecin, Poland, with plans to add an arched roof made from inflatable panels (+ slideshow). More about Flanagan Lawrence to update Polish summer theatre with new inflatable roof
The next big US project for Bjarke Ingels' firm could be an American football stadium for the Washington Redskins. More about BIG in the running to design American football stadium
Rounded windows and skylights allow daylight to filter into this Parisian swimming pool by Mikou Studio, which features a grassy rooftop solarium (+ slideshow). More about Mikou Studio completes Paris swimming pool designed using Feng Shui philosophy
Architects Ifat Finkelman and Deborah Warschawski have built a slatted wooden structure around an old pine tree to update a courtyard space at the Israel Museum in Jerusalem (+ slideshow). More about Treehouse installed in Israel Museum playground by Ifat Finkelman and Deborah Warschawski
South Korea's Studio Koossino created a concrete building with white and yellow protrusions to provide shared workspaces for an artists' community north of Seoul (+ slideshow). More about Maxcube by Studio Koossino houses creative workspaces within concrete walls
A screen of vertical white louvres meanders around these facilities for campers in central Portugal, designed by Lisbon studio Atelier Rua (+ slideshow). More about Atelier Rua screens Portuguese campsite facilities with white slatted facade
Zaha Hadid has accused Japanese authorities and architects of colluding over the Tokyo 2020 Olympic stadium project, and says that Kengo Kuma's replacement design has "remarkable similarities" to her own. More about Zaha Hadid accuses Japanese government and architects of collusion over Tokyo stadium
Japanese officials have selected a wooden lattice design by Kengo Kuma for the new National Stadium in Tokyo, which will be the centrepiece for the 2020 Olympics. More about Kengo Kuma beats Toyo Ito to win Japan National Stadium competition