Steel triangles protruded from a waterfall in central France to intervene with the cascade of water in this installation by artist Laurent Gongora. More about Les Cascadeurs installation by Laurent Gongora interrupts the flow of a waterfall
Swiss artist Felice Varini has painted curved strips onto buildings and streets in Hasselt that create a picture of overlapping rings when viewed from a single vantage point in the Belgian city. More about Felice Varini paints perspective-dependant artwork across Belgian city
Graduate designer Kine Solberg has created window panels from circular glass lenses that manipulate images of the landscape reflected across their surfaces (+ slideshow). More about Kine Solberg's window panels made with lenses create distorted views
Dezeen and MINI Frontiers: artist Lucy McRae explains how she plans to vacuum-pack visitors at the Dezeen and MINI Frontiers exhibition in September to prepare their body for long-haul space travel. More about Lucy McRae to vacuum-pack exhibition visitors to "prep the body to go to space"
Japanese architect Kotaro Horiuchi stretched two punctured membranes across a gallery in Nagoya so visitors could pop up through the holes like moles in a popular arcade game (+ slideshow). More about Kotaro Horiuchi creates human Whac-A-Mole with membrane installation
A year after opening as an art space, the rooftop of Modernist architect Le Corbusier's Cité Radieuse building in Marseille is hosting an installation of mirrors and coloured glass by French artist Daniel Buren (+ slideshow). More about Daniel Buren installs mirrors and coloured glass on Le Corbusier's Cité Radieuse rooftop
American design studio SOFTlab attached 20,000 translucent flowers to a flexible plastic mesh to create this installation for the Brazilian jelly-shoe brand Melissa's New York flagship store (+ movie). More about SOFTlab installs colourful funneled canopy in Melissa shoe shop
Artist James Bridle has teamed up with architecture studio TDO to build a rooftop hangar on a south London car park, from which a military surveillance balloon makes a daily flight to snoop on the area (+ movie). More about Rooftop hangar by TDO provides launchpad for James Bridle's surveillance balloon
Paris designer Arik Levy has created a bright red steel object to sit beneath the Atomium sculpture in Brussels, which reflects the colourful piece in its shiny spheres. More about Arik Levy's RockGrowth sculpture sits under the Atomium
News: visitors to the National Building Museum in Washington DC can now get lost inside a concave wooden maze installed by Danish architecture firm BIG (+ slideshow). More about Bjarke Ingels' "BIG Maze" opens at Washington's National Building Museum
Two Mercedes-Benz cars appear to soar through the sky in British designer Gerry Judah's latest installation for the Goodwood auto show (+ movie). More about Gerry Judah's arcing sculpture suspends Mercedes cars above Goodwood crowds
An apartment at Modernist architect Le Corbusier's Cité Radieuse housing block in Marseille has undergone a colourful refit by French designer Pierre Charpin (+ slideshow). More about Pierre Charpin refits Appartement N°50 in Le Corbusier's Cité Radieuse
Pulsing rings of light traced the movement of visitors to this installation in Federation Square, Melbourne, by designer Asif Khan – who this week picked up a Grand Prix at the Cannes Lions awards (+ movie). More about Radiant Lines by Asif Khan creates rings of light in Melbourne's Federation Square
Architect Rem Koolhaas's studio AMO created a runway surrounded by water for fashion house Prada's Spring Summer 2015 collection shown in Milan on Sunday. More about Prada SS15 catwalk by Rem Koolhaas' AMO floats on a blue pool
Venice Architecture Biennale 2014: one of the grandest installations created for the Venice biennale is a grid of seven-metre-high golden columns by German artist Heinz Mack (+ slideshow). More about Heinz Mack installs towering golden columns on a Venetian island
Venice Architecture Biennale 2014: design collective Numen/For Use present a cube that appears to contain an infinite universe, as part of the Time Space Existence exhibition at the biennale. More about N-Light Membrane by Numen/For Use contains an infinite grid of light
Korean artist Seon Ghi Bahk has created a series of installations using pieces of charcoal suspended by nylon threads in an exhibition which aims to examine the relationship between natural materials and man made objects (+ slideshow). More about Lumps of charcoal suspended in mid air create outlines of classical architecture and furniture
Venice Architecture Biennale 2014: a monumental installation of interconnected bicycle frames by Chinese artist Ai Weiwei has been installed in the riverside courtyard of Palazzo Franchetti in Venice. More about Ai Weiwei's Forever Bicycles installed at Palazzo Franchetti in Venice
This installation featuring a kinetic wall that responds to hand gestures examines the potential of sensor-based technologies that could be used control the physical shape of our surroundings (+ movie). More about Breathing wall 2.0 by Behnaz Farahi is controlled by hand gestures
Red, white and blue translucent circles overlapped to form this screen created by London designer Paul Cocksedge at a festival in Istanbul (+ slideshow). More about Paul Cocksedge transforms Istanbul sea view with installation of colourful circles