Dezeen promotion: cotton was the material of choice for design studio Barkow Leibinger when forming an undulating canopy in the centre of Marrakech (+ interview + slideshow). More about Barkow Leibinger chose "strong and elastic" cotton for tensile installation in Marrakech
Hungarian architecture studio Hello Wood has created an 11-metre-high Christmas tree for a square in central Budapest from 15,000 kilograms of wooden logs (+ movie). More about Hello Wood builds Budapest Christmas tree from 5000 pieces of firewood
A beam of orange light slices through a blacked-out gallery inside Frank Gehry's Fondation Louis Vuitton building, in an exhibition by Olafur Eliasson that aims to skew viewers' perceptions of space (+ slideshow). More about Olafur Eliasson's immersive light installations inhabit Gehry's Fondation Louis Vuitton
Perrier-Jouët Small Discoveries: design duo Mischer'Traxler discuss their interactive installation featuring plants that sprout when nobody is nearby in this Dezeen movie for champagne brand Perrier-Jouët. More about Mischer'Traxler's kinetic Ephemerā installation "comes alive" when visitors walk away
Nineteen London-based designers including Dominic Wilcox and Paul Priestman have created miniature fantasy rooms for an exhibition of Dolls' Houses at the city's Museum of Childhood. More about London designers create tiny dream rooms for Museum of Childhood exhibition
Brazilian designers Fernando and Humberto Campana have created an indoor "forest" of flax and wood at the Bildmuseet in Umeå – their first project in Sweden (+ slideshow). More about Campana brothers bring "nature indoors" with bristly installation
Dutch designer Daan Roosegaarde has developed a bespoke projection lens that "unravels light" to turn an arc-shaped section of Amsterdam's Centraal Station into a rainbow (+ movie). More about Daan Roosegaarde lights up Amsterdam station with rainbow projection
Design Miami 2014: wire-mesh furniture was shown against a gridded backdrop by assistants dressed in matching garments during this year's Design Miami fair (+ slideshow). More about Patrick Parrish Gallery presents gridded furniture and matching clothing at Design Miami 2014
Design Miami 2014: Seattle studio Olson Kundig Architects used stacks of timber beams to form the collector's lounge at this year's Design Miami fair (+ interview + slideshow). More about Olson Kundig Architects based Design Miami lounge on historic lumber yards
A harlequin pattern of mirrors enveloped a patch of Hungarian woodland in this installation created by Budapest-based Studio Nomad for a summer music festival (+ slideshow). More about Studio Nomad's mirror installation reflects fragments of forest at a Hungarian music festival
Design Miami 2014: Viennese design duo Mischer'Traxler has unveiled a kinetic installation for Champagne brand Perrier-Jouët featuring a table covered in plants that disappear as visitors approach (+ movie). More about Plants bloom on Mischer'Traxler's table for Perrier-Jouët when you move away from it
Design Miami 2014: Italian artist Massimo Uberti has bent neon tubes into the shape of a room for an installation commissioned by British motor company Bentley (+ slideshow). More about Massimo Uberti sculpts neon tubes into a room for Bentley
Medical research suggests that too much sitting down can be bad for your health, so RAAAF and Barbara Visser have developed an experimental office that encourages workers to lean, perch or even lie down (+ slideshow). More about Conceptual office swaps chairs and desks for "experimental work landscape"
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