Architecture firm Snøhetta has installed a smile-shaped aluminium bench at the United Nations Headquarters in New York to promote "a message of peace and conflict resolution." More about Snøhetta installs curved Best Weapon bench to encourage conversations at UN Headquarters
Jon Emmony has installed a five-storey augmented reality experience, called Digital Falls, in the atrium of Selfridges department store in London. More about Jon Emmony designs "Europe's largest AR experience" for Selfridges
A five-sided pyramid with cutouts influenced by constellations was created to pay homage to heroic woman during this year's Burning Man festival. More about Architect John Marx reimagines a Greek myth for Burning Man pavilion
Kirkby Design has given a 1967 London Underground carriage a candy-coloured overhaul by upholstering it in the brand's Underground Vol. II fabric collection. More about Kirkby Design gives 1960s Tube carriage pastel-coloured revamp
The Gun Violence Memorial Project at this year's Chicago Architecture Biennial is an installation of houses filled with items belonging to victims of gun violence. More about MASS Design Group builds glass memorial for victims of gun violence at Chicago Architecture Biennial
Art collective Skaparkollektivet Forma has created an installation to house 17,000 unique tiny artworks that represent migrants who were expected to be deported from Sweden. More about Skaparkollektivet Forma displays 17,000 artworks to visualise minors at risk of deportation
Finnish studio JKMM Architects built a timber sauna in the desert for over 1000 revellers to sweat it out during this year's Burning Man festival. More about "Bringing a sauna into the desert was so mad that we had to do it" say Burning Man pavilion designers
The 130 trees covered in pink, yellow and blue nylon webbing that form this installation in Columbus by US architecture firm SO-IL will be replanted at a nearby house designed by Eero Saarinen. More about SO-IL wraps 130 trees in colourful hammock for an installation in Indiana
Artist Benjamin Langholz created a circular staircase of stepping stones to allow revellers to tune out the immersive atmosphere at this year's Burning Man and focus on themselves. More about Benjamin Langholz's circular staircase at Burning Man creates "an alternate reality"
Beaded costumes designed for the Mardi Gras parades in New Orleans by artist and educator Big Chief Demond Melancon were on show at London's V&A museum for London Design Festival. More about Beaded Mardi Gras costumes by Big Chief Demond Melancon on show at V&A
From the cave markings left by early man to the Swedish Parliament where Greta Thunberg began her climate strike, Es Devlin has represented crucial historical moments on a three-dimensional map at Pitzhanger gallery. More about Es Devlin's Memory Palace model maps out momentous events in history
Artist Edoardo Tresoldi has partially filled the walls of Simbiosi – a ghostly wire-mesh sculpture on a hillside at the Arte Sella open-air museum in Italy – with rocks. More about Edoardo Tresoldi creates ethereal wire mesh sculpture at Arte Sella
Photographer Dan Tobin Smith used footage of more than 100 gemstones, blown up to 60 times their size, to create an immersive installation in the basement of Collins Music Hall for London Design Festival. More about Dan Tobin Smith blows up gemstones to 60 times their size for Void installation
Yesomi Umolu, the artistic director of this year's Chicago Architecture Biennial, has picked five highlights from the event, including a glass memorial dedicated to victims of gun violence victims and a small cinema set that explores race and gender in the 20th-century. More about Five installations and exhibits not to miss at Chicago Architecture Biennial 2019
Recycled materials can be used to make luxury products says Matter of Stuff, which has created its London Design Festival 2019 exhibition by repurposing elements of its show from 2018. More about Matter of Stuff recycles last year's London Design Festival exhibition into something new
A ladder-like seat inspired by a biblical tale and an armchair that appears to have been swallowed by a rug are some of the pieces to appear in this installation curated by designer Gitta Gschwendtner. More about Fenton House's Please Sit installation reimagines the chair six ways
The Non-Pavilion is a London Design Festival installation that barely exists, to make a statement that the world needs to produce less. More about V&A promotes degrowth with a pavilion that's nothing but empty space
The light and mirror installation at British designer Lee Broom's London showroom for London Design Festival appears to transport visitors into the interior of a kaleidoscope. More about Lee Broom creates kaleidoscopic light installation in London showroom
Sam Jacob has reimagined a famous Eames textile for his London Design Festival installation Sea Things, to highlight the threat ocean plastic poses to marine life. More about Sam Jacob looks to a future when ocean plastic outnumbers fish
Bamboo and carbon fibre can be used together to build earthquake-proof architecture, says Japanese architect Kengo Kuma, whose Bamboo Ring is installed at the V&A for London Design Festival. More about Kengo Kuma combines bamboo with carbon fibre to create "material for the future"