Lifeguard outposts along Toronto's frozen waterfront have been converted into a series of installations and pavilions, including a set of bright red swings and a spiky timber folly (+ slideshow). More about Designers convert lifeguard towers into winter pavilions for Toronto's frozen beaches
Brazilian architect Marko Brajovic has fixed thousands of bright red shoelaces to the undulating ceiling of this Camper footwear shop in Melbourne (+ slideshow). More about 30,000 red shoelaces hang from the ceiling of Melbourne's Camper store
A cafe in a cross-shaped tent, a mirrored hideaway and a pop-up art gallery are among the shelters that architects have dotted along a frozen river in Winnipeg, Canada (+ slideshow). More about Warming Huts provide shelter for ice-skaters on Winnipeg's frozen river
Cascades of water tumbled from scaffolding-supported troughs into a pool at the centre of the catwalk for British outerwear brand Hunter's London Fashion Week show (+ slideshow). More about Waterfalls flow over catwalk at Hunter fashion show
Dutch designer Daan Roosegaarde has created a lighting installation that resembles the aurora borealis above a flood channel of the Netherlands' River IJssel (+ slideshow). More about Daan Roosegaarde's Waterlicht installation mimics northern lights in Dutch skies
Models wearing hazard-striped garments stood still as conveyor belts transported them past guests at House of Holland's London Fashion Week presentation (+ slideshow). More about Travelator catwalk carries models around House of Holland fashion show
Vertical wooden laths cyclically pummel the floor of a cavernous New York factory building in this installation by Swiss artist Zimoun (+ movie). More about Wooden poles randomly strike the ground at Zimoun's installation in New York
A section of tarmac appears to have been peeled back from the surface of a car park at London's Southbank Centre, suspending a car upside down in artist Alex Chinneck's latest illusionary installation (+ slideshow). More about Parked car is upended on a tarmac wave in Alex Chinneck installation
Lengths of delicately woven fabric were draped over metal skewers at this Tokyo exhibition about the tradition of hemp textiles in Japan (+ slideshow). More about Yusuke Seki showcases fragile hemp textiles across banks of metal rods
White balloons spill out the windows and doors of a house, invade a golf course and overflow from a burnt-out car in a series of installations by French artist Charles Pétillon (+ slideshow). More about Charles Pétillon fills abandoned spaces with white balloons
A pedestrian bridge in Bristol, England, is the latest architectural landmark to be enveloped in fog by Japanese artist Fujiko Nakaya (+ slideshow). More about Fujiko Nakaya hides Bristol bridge inside a blanket of fog
This ceiling-mounted installation by Italian architect Carlo Ratti uses motion tracking to direct personalised "clouds" of water vapour at anyone walking beneath. More about Carlo Ratti's Cloud Cast directs a cooling mist over passersby
News: car brands BMW and MINI have enlisted Alfredo Häberli and Jaime Hayón to create mobility-themed installations for Milan's annual design week in April. More about BMW and MINI announce installations by Alfredo Häberli and Jaime Hayón for Milan
News: Spanish architect Andrés Jaque has won this year's MoMA PS1 Young Architects Program contest, with plans to turn the courtyard of the New York gallery into a water filtration plant. More about Andrés Jaque to create water-purifying pipe network for MoMA PS1 Young Architects Program
This labyrinthian theatre set of slatted and solid timber is designed to create an environment for two strangers to act out an improvised performance (+ slideshow). More about TAAT's interactive theatre set is designed to "tickle a higher sense of spatial awareness"
News: London studio Raw Edges will install a new floor and seating using a grid of dyed timber inside the sculpture gallery at Chatsworth House in England's Peak District. More about Raw Edges to fill stately home gallery with colourful wood patterns
This interactive installation by design studio Kram/Weisshaar allows users to remotely control a robotic arm that sculpts foam cubes into furniture pieces (+ movie). More about Robotic arms create custom furniture in Kram/Weisshaar's Robochop installation
Brooklyn studio SO-IL has stretched a thin layer of white film over the facade of the Storefront gallery in New York, giving the building a vacuum-packed appearance (+ slideshow). More about SO-IL wraps white plastic around New York's Storefront gallery
Maison&Objet 2015: Japanese studio Nendo has surrounded a lounge area with a cascade of 2,000 chocolate-coloured pipes for an installation at this year's Maison&Objet trade fair (+ slideshow). More about Nendo creates chocolatey waves for Maison&Objet installation
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