London Design Festival 2015: Dublin studio Grafton Architects has installed rows of textured concrete monoliths inside the V&A museum's tapestry gallery, referencing an ancient script and prehistoric standing stones. More about Grafton Architects stands concrete columns in rows to create The Ogham Wall at the V&A
London Design Festival 2015: London designer Kim Thomé's Zotem installation features patterns of faceted crystals that appear to rise up 18 metres through the V&A museum's grand entrance (+ movie). More about Kim Thomé installs giant crystal zoetrope inside London's V&A museum
London Design Festival 2015: British artist Alex Chinneck has revealed a 35-metre-tall latticed steel sculpture resembling an upside-down electricity pylon for this year's London Design Festival (+ slideshow). More about Alex Chinneck unveils installation modelled on upside-down electricity pylon
Architectural firm Pedro Barata e Arquitetos Associados has created a 12-metre-tall periscope in Brazil using a shipping container stood on its end. More about Pedro Barata transforms shipping container into "world's biggest periscope"
Finnish design duo Company has created a range of products combining traditional skills and designs from northern Japan with craft from Finland and has given each one a "spirit" – a person dressed in a costume to represent the soul of the object (+ slideshow). More about Company's Secrets of North Japan includes "spirit" costumes and Japanese roller-skates
Three designers from the Canadian firm Groupe A / Annexe U have erected an orange pavilion within a shallow pool, requiring visitors to don waterproof shoes to explore the structure's interior (+ slideshow). More about Visitors must wear rain boots to explore Get Wet installation at Quebec garden festival
A new installation by Boston-based architecture studio Matter Design features a wooden box with sculptural interior walls that radiate different temperatures, creating an "intimate and contradictory set of experiences". More about Matter Design's Microtherme conceals voluptuous concrete forms within a wooden box
London Design Festival 2015: London artist Barnaby Barford has stacked 3,000 tiny shops made from bone china into a version of the biblical Tower of Babel at the V&A museum (+ slideshow). More about Barnaby Barford's Tower of Babel comprises 3,000 tiny ceramic shops
Designer Daan Roosegaarde has installed the "largest smog vacuum cleaner in the world" in Rotterdam to help improve the city's air quality (+ movie). More about Daan Roosegaarde's Smog Free Tower opens in Rotterdam
London Design Festival 2015: Norwegian design studio Kneip has created a set of four functional sculptures that measure and report on weather conditions (+ movie). More about Kneip designs Weathered series of sculptural atmospheric sensors
London Design Festival 2015: an exhibition by Swedish gardening house Coloni and trend forecaster Studio Aikieu will celebrate the potential of "undesirable" and wild-growing species in towns and cities. More about Coloni and Studio Aikieu celebrate weeds with Plants Out Of Place exhibition
Visitors to an Innsbruck gallery can crawl from room to room via a series of bouncy net tunnels installed by design collective Numen/For Use. More about Tube net installation by Numen/For Use designed as a "giant convulsing centipede"
French artist Charles Pétillon has installed a giant cloud of balloons under the roof of the 19th-century Market Building in London's Covent Garden (+ movie). More about Charles Pétillon fills Covent Garden market with 100,000 white balloons
Dutch studio Atelier Van Lieshout has unveiled its largest installation to date: a giant art village at the Ruhrtriennale arts festival in west Germany (+ slideshow). More about Atelier Van Lieshout takes over German festival with The Good, The Bad and The Ugly installation
Design Academy Eindhoven graduate Manon van Hoeckel is crowdfunding her In Limbo Embassy – a travelling office that aims to facilitate open discussion around immigration in the Netherlands. More about Manon van Hoeckel creates "neutral" travelling embassy for undocumented migrants
Zaha Hadid has created a swooping canopy for New York's High Line – in an area of the elevated park abutting the construction site for a building designed by the architect. More about Zaha Hadid's High Line installation protects park visitors from construction debris
Austrian arts collective Neon Golden has created an immersive light installation that mimics the movements of fireflies (+ slideshow). More about Neon Golden replicates swarm of fireflies with light installation
Students from the Institute of Architecture and Design Chihuahua have used scaffolding, wood and fabric to turn a disused park fountain into a shaded urban spa for local residents (+ slideshow). More about Students use scaffolding to build Urban Spa in a Mexican park
Zurich citizens can now relieve themselves at a pink marble public pissoir, installed at an open-air car park by local architecture firm Bureau A (+ slideshow). More about Bureau A installs pink marble urinal at Zurich car park
Swiss childrenswear brand L'asticot has collaborated with architecture firm Bureau A to install a miniature cardboard city at its Geneva store (+ slideshow). More about Bureau A builds a model Soviet city inside L'asticot boutique