Children would swing beneath a giant colourful hot-air balloon in this proposal for a sculpture park in Queens by Australian architect Jesse Lockhart-Krause. More about Balloon Swing proposed for New York park
Cologne 2015: Chinese studio Neri&Hu has installed its vision for the home of the future – overfilled with furniture – at the imm Cologne trade fair (+ slideshow). More about Neri&Hu's Das Haus installation is designed to "unsettle people"
Northmodern 2015: Eindhoven studio OS & OOS has designed a modular lighting system joined by rubbery connectors that allow users to create sculptural installations (+ slideshow). More about Mono-Light by OS & OOS twists and bends into different configurations
Dutch studio OMA's research branch AMO has created a series of symmetrical linked vestibules to form a disorientating runway for Prada's Autumn Winter 2015 menswear show (+ slideshow). More about AMO simulates an infinite catwalk for Prada menswear show
Visitors to an office-themed installation by Aberrant Architecture were invited to take a spin on an office chair below a ceiling suspended just 1.5 metres above the ground (+ movie). More about Aberrant's styrofoam ceiling installation celebrates wasting time at work
Hungarian design student Zsanett Szirmay has transferred folk embroidery patterns onto strips for a punched card music box, which plays the traditional motifs as sounds (+ slideshow). More about Zsanett Szirmay turns cross-stitch patterns into musical scores
Orange tubes bend and twist to suggest the outline of a living space in a set created by Spanish studio Stone Designs for presenting Japanese fashion designer Issey Miyake's latest Homme Plissé collection (+ movie). More about Tubular installation forms backdrop for Issey Miyake menswear campaign
Portuguese architect Camilo Rebelo installed this wooden egg large enough for several people to hide inside beneath the vaulted ceilings of the Porto city hall atrium (+ slideshow). More about Camilo Rebelo installs "trojan egg" inside Porto's city hall
London designer Philippe Malouin has used quartz surface material Caesarstone to form the seats of twelve swings arranged in a circle for an exhibition later this month. More about Philippe Malouin creates circular swing set with Caesarstone seats
Italian designer Martino Gamper has created a "homage to the humble corner" in the shop windows of fashion house Prada (+ slideshow). More about Martino Gamper plays with perspective for Prada window installations
Lengths of brightly coloured garden hose are arranged to resemble a classical fountain in a work by artist Bertrand Lavier currently installed in the grounds of London's Serpentine Sackler Gallery (+ slideshow). More about Bertrand Lavier's "unruly mass" of hoses creates a fountain outside the Serpentine Sackler Gallery
Over 1000 inflated and illuminated latex gloves appeared to reach out from the surface of a French lake in this installation by Spanish lighting designers Luzinterruptus (+ slideshow). More about Luzinterruptus creates "weird and sinister" lighting installation using floating latex gloves
Mountains of foam, fields of poppies and clouds of fog are among Dezeen design editor Dan Howarth's 10 favourite installations from the past 12 months. More about Dezeen's top 10 installations of 2014
Architecture studio Brut Deluxe has designed this year's Christmas lights in Madrid to work like a "flip book on an urban scale", taking spectators on a trip to the moon as they walk through the city (+ movie). More about Madrid installs moon-themed Christmas lights
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