A subterranean museum below architect Eero Saarinen's iconic arch in St Louis has been renovated and expanded by three architecture firms, as part of an effort to rejuvenate the area around the monument. More about Eero Saarinen's Gateway Arch museum undergoes revitalisation in St Louis
Arc Designs has created a cantilevered viewing platform, and walkway with a glazed floor, perched on one of the highest points of the Rock of Gibraltar. More about Former military lookout in Gibraltar transformed into glazed viewpoint
German artist Thomas Schütte has added a log cabin topped, with an asymmetric shingled roof, to the array of buildings on the Vitra Campus, in Weil am Rhein. More about Thomas Schütte creates log cabin on Vitra Campus
Brochet Lajus Pueyo has completed a swimming pool in Saint Gilles Croix de Vie, France, with a roof informed by waves and the movements of manta rays. More about Lattice framework supports undulating roof at swimming pool by Brochet Lajus Pueyo
American firms Lake Flato and Matsys, along with landscape architect Rialto Studio, have designed a riverfront park in southern Texas, with sculptural pavilions that provide shade on sunny days and help collect rainwater during storms. More about Lake Flato and Matsys build pavilions with "petals" for San Antonio's Confluence Park
Vancouver firm Michael Green Architecture has built a boathouse for storing racing shells and sails and monitoring maritime activity, with translucent walls and garage doors. More about Polycarbonate Dock Building by Michael Green Architecture glows on Vancouver beachfront
With the FIFA World Cup 2018 kicking off today in Russia, here's a look at all 12 of the stadiums that will be hosting games over the next month. More about 12 stadiums that will host matches at the World Cup 2018 in Russia
Drivers cruising along one of Norway's Scenic Routes can take a break at this mirrored toilet that reflects the surrounding landscape. More about Morfeus Arkitekter completes mirrored toilet block on Norwegian coastline
Ptolemy Dean Architects has added a star-shaped tower to London's Westminster Abbey, the most significant addition to the building since 1745. More about Westminster Abbey extended with "steampunk gothic" tower by Ptolemy Dean Architects
To mark 150 years since the birth of Charles Rennie Mackintosh, we're looking back at five influential projects that defined his career. We round off our celebration with the Willow Tea Rooms in Glasgow. More about Willow Tea Rooms is Charles Rennie Mackintosh's most complete interior design
A helium balloon tethered to a cantilevered track is among the winners in a competition to design a conceptual observation deck to overlook a volcano's crater in eastern Turkey. More about Winning concepts revealed in competition to design observation deck on Turkish volcano
Kengo Kuma and OODA have paired up to transform a disused slaughterhouse in Porto into a cultural centre, which will feature art galleries and a library beneath a sweeping ceramic-clad roof. More about Kengo Kuma to convert Porto slaughterhouse into cultural centre
Dutch studio MVRDV has unveiled plans for a new technology education centre in the Albanian capital of Tirana, which will be housed within a pyramidal monument to communism. More about MVRDV to convert communist monument in Albania into technology centre
The Temperate House conservatory at Kew Gardens in Richmond upon Thames, London has reopened to the public following a five year restoration by Donald Insall Associates. More about Donald Insall Associates restores Victorian glasshouse at London's Kew Gardens
Four teams including architects Amanda Levete, Carlo Ratti and Junya Ishigami are vying to improve facilities at the Eiffel Tower, in time for the Paris 2024 Olympic and Paralympic Games. More about Amanda Levete and Junya Ishigami among shortlist for Eiffel Tower overhaul
South Korean studio CoRe Architects has transformed a former military bunker in Seoul into the Peace and the Culture Bunker, a creative hub for the local community. More about CoRe Architects converts Korean tank bunker into community arts centre
Graduate Lilach Borenstein has proposed creating a multi-storey tower with varied topographies as a monument to tranquility and antidote to hectic urban living. More about Multi-storey park concept aims to give inhabitants a break from urban stress
The great-grandson of art collector Peggy Guggenheim has opened a gallery at an eco-resort in Tulum, where wave-like cement walls and undulating vine floors provide an unusual backdrop to artwork. More about Guggenheim successor opens tropical-influenced IK Lab art gallery in Tulum
SCAU is set to cover the Clamart stadium in Paris with verdant foliage, as part of a renovation that will be completed in time for the Olympic Games in 2024. More about Paris stadium to be covered with greenery in bid to become Olympic venue
A metal brise-soleil and a sculptural rooftop block allow a new performing arts centre by Tennessee studio Archimania to stand out in a revitalised district in Midtown Memphis. More about Copper screen stretches across front of Memphis ballet school by Archimania