Norwegian artist Per Kristian Nygård attempted to bring the outside inside with this installation that involved building grassy mounds inside an Oslo gallery (+ slideshow). More about Per Kristian Nygård crams a grassy valley into an Oslo gallery
Hundreds of plexiglas tetrahedrons rippled with waves of illumination in response to changing light conditions for this installation by design collective Pangenerator (+ movie). More about Pangenerator's installation of translucent pyramids flashes in waves of light
One of the UK's oldest food markets created The Real Apple Store to showcase 1,000 British apple varieties as part of its anniversary celebrations (+ slideshow). More about Real Apple Store created for Borough Market's 1000th birthday
A team of Austrian students installed a model city in the centre of Vienna to show how much housing and infrastructure could be built with the €19 billion (£15 billion) that the government is paying to bail out a local bank (+ slideshow). More about Austrians protest government spending with concrete model city
The permeable fabric skin of this inhabitable installation by graduates from Germany's Burg Giebichenstein University of Art and Design allowed moisture into the space, designed to make visitors feel like they were inside a cloud (+ slideshow). More about Iranzo, Rittler and Kesting create cocoon-like "cloud" installation
Interieur 2014: antique objects from a Belgian museum's permanent collection appear as ghostly apparitions in an exhibition by London studio Glithero (+ movie). More about Glithero exhibits artefacts as spectral illusions for Fantoom exhibition
Istanbul Design Biennial 2014: German architect Jürgen Mayer H has created a room filled with glowing pink light and ambient pink noise to explore how sleeping patterns could become "more nomadic" in the future (+ slideshow). More about "We need to redefine the sleep cycle" says architect Jürgen Mayer H
Lengths of transparent film and sticky tape wrap around the concrete columns of Paris gallery Palais de Tokyo to form a network of hollows and tunnels in an installation by Numen/For Use (+ slideshow). More about Numen/For Use creates inhabitable "corporeal" installation with sticky tape
American architects Elizabeth Diller and Ricardo Scofidio have created an installation inside the Fondation Cartier in Paris by Jean Nouvel, adding a "leak" in the ceiling with drops of water that trigger a series of reactions across two gallery spaces (+ slideshow). More about Diller and Scofidio create "mischievous" leak inside Jean Nouvel's glass gallery
Biennale Interieur curator Joseph Grima and his research collective Space Caviar took over a derelict school in Kortrijk to create an exhibition exploring how perceptions of the home have changed over time (+ slideshow). More about Joseph Grima explores changing ideas of domesticity for Biennale Interieur exhibition
The German capital is commemorating 25 years since the fall of the Berlin Wall with a trail of illuminated balloons along its former route (+ movie). More about Berlin celebrates "fall of the wall" anniversary with 8,000 glowing balloons
A spiky red wall reminiscent of a cartoon explosion is one of two installations that French artist Didier Faustino has inserted in the grounds of a 1950s villa designed by architect and sculptor André Bloc (+ slideshow). More about Didier Faustino adds "explosive architectural installation" to André Bloc's 1950s villa
Visitors to an Austrian museum transcend the exhibition space on a steep black staircase constructed from layers of net by design collective Numen/For Use (+ slideshow). More about Numen/For Use combines "height and wobbliness" in net staircase for Linz gallery
Interieur 2014: a troop of robotic vacuum cleaners "waltz" with each other around a school gymnasium in this installation for the Biennale Interieur event in Kortrijk, Belgium (+ movie). More about Robotic vacuum cleaners perform a Viennese Waltz at Biennale Interieur 2014
Interieur 2014: the winners of the spaces category at this year's Interieur Awards have built their concept bar proposals in the halls of Kortrijk Xpo for the biennial design event. More about Biennale Interieur 2014 award winners realise bar concepts at Kortrijk Xpo
Brightly coloured stripes based on refracted light run across the walls, ceilings and floors of an art gallery in Nuremberg, Germany, in this immersive installation by Markus Linnenbrink (+ slideshow). More about Markus Linnenbrink's Off the Wall! installation immerses visitors in colour
Japanese architect Sou Fujimoto has created an installation in Paris' Jardins des Tuileries composed of suspended metal cubes and plants, for the FIAC art fair. More about Sou Fujimoto stacks aluminium boxes to form "nomadic" house installation in Paris
French artist Benedetto Bufalino has created a tennis court over two rooms of a gallery in Dijon, complete with fake grass, white lines and a net across the doorway (+ slideshow). More about Benedetto Bufalino transforms a former apartment into a tennis court
Dutch Design Week 2014: smells of sweat, grease and metal waft from the glass tubes of this installation, created by Design Academy Eindhoven graduate Mickaël Wiesengrün to add historical context to its setting in a former factory. More about Révélateur installation by Mickaël Wiesengrün recreates "smells of the past"
Synthetic human body parts mounted on robots dance to dramatic music in Dance Machines, an installation by British artist Peter William Holden in London (+ slideshow). More about Peter William Holden’s Frankensteinian robots perform dance routines to music