Glowing red arches straddled bushes, pathways, fences and fountains in the gardens of the Portuguese presidential residence earlier this year, as part of an installation by Porto studio LIKEarchitects (+ slideshow). More
Design students from London's Royal College of Art have created a mysterious floating spherical object that drifts through public spaces recording conversations and plays them back when there's nobody around (+ movie). More
Models were suspended in vacuums between plastic sheeting during Dutch fashion designer Iris van Herpen's Autumn Winter 2014 show at Paris Fashion Week. More
Milan 2014: Kitchen and bathroom equipment is lowered into islands made from engineered quartz material Caesarstone in this animated preview of an installation for the brand by London studio Raw Edges, to be unveiled in Milan next month (+ movie). More
Light projected through a soap bubble throws patterns generated by the tiny vibrations of a speaker onto the ceiling in this installation by Royal College of Art graduate Dagny Rewera (+ movie). More
London architecture studio Orproject has installed a forest of illuminated paper trees that join up to form a continuous canopy at a gallery in New Delhi (+ slideshow). More
These interactive installations by artist Daniel Rozin use sensors and motors to rearrange objects into a mirror-image of whoever stands in front of them (+ slideshow). More
An Alpine choir pivoted on hydraulic platforms as part of French fashion house Moncler's Autumn Winter 2014 presentation at New York Fashion Week, which concludes today (+ movie). More
The surrounding trees and sky will be reflected in a wide, shallow pool of water in this installation by Spanish architecture group Citylaboratory for a garden festival in Quebec, Canada. More
Canadian firm RAW Design has created a series of shelters that look like giant pompoms to keep skaters warm on a frozen river in Winnipeg (+ slideshow). More
Visitors could suspend themselves within a 3D grid of ropes inside this inflatable installation created by Croatian-Austrian design collective Numen/For Use (+ slideshow). More
Stockholm 2014: as Guest of Honour at Stockholm Furniture Fair, design duo GamFratesi has installed petal-shaped mobiles above the lounge area at this year's exhibition. More
This hilltop staircase by Dutch firm NEXT Architects appears to create a continuous pathway, but it's actually impossible to walk round more than once without climbing off (+ slideshow). More
A twisting chain-link and barbed-wire fence installed by French artist and architect Didier Faustino at an exhibition in Cincinnati determines the path taken by visitors through the gallery space. More
Dezeen and MINI World Tour: Dutch designer Daan Roosegaarde explains how his installation in Eindhoven consisting of hundreds of glowing LED crystals will change over time as some people steal them and others create new ones of their own. More
The window of London department store Selfridges has been dressed with a selection of new inventions by British designer Dominic Wilcox, including a reverse listening device and binoculars for viewing the future (+ slideshow). More
Interdisciplinary art collective BeAnotherLab has developed a virtual reality headset that allows users to experience what it would be like to live in the skin of someone from the opposite sex. More
Architects including Álvaro Siza, Eduardo Souto de Moura and Kengo Kuma have taken over the galleries of London's Royal Academy of Arts for an architecture exhibition that features a labyrinth of sticks, an inhabitable timber monument and a web of scented bamboo (+ slideshow). More
Cologne 2014: two shingle-clad houses converge to form this year's Das Haus home of the future installation at the imm cologne fair by Copenhagen designer Louise Campbell (+ slideshow). More
Visitors to London department store Selfridges can take a virtual reality tour created by technology company Inition inside a helmet by fashion designer Gareth Pugh (+ slideshow). More