A strip of glazing interrupts the seamless stone-clad surfaces of this multipurpose cultural venue, which Berlin office Hascher Jehle Architecture designed for a site in the Austrian city of Feldkirch (+ slideshow). More about Montforthaus is a curving stone and glass cultural centre in a medieval Austrian city
Designer Daan Roosegaarde has installed the "largest smog vacuum cleaner in the world" in Rotterdam to help improve the city's air quality (+ movie). More about Daan Roosegaarde's Smog Free Tower opens in Rotterdam
On the edge of Mexico's border with the US, this house by New York-based architects T38 Studio hides an enclosed courtyard garden behind its black stucco volumes (+ slideshow). More about House in Mexico by T38 Studio contains a private courtyard garden
Chocolate-patterned wall panelling and sofas shaped like Toblerones feature in Dutch designer Marcel Wanders' Swiss-inspired hotel in Zurich (+ slideshow). More about Swiss chocolate influences Marcel Wanders' Kameha Grand Zurich hotel
This multifunctional building by French studio PPA Architectures, provides a residence, gallery, workshop and events space, and stands at the edge of a golf course on the outskirts of Toulouse, southern France (+ slideshow). More about PPA Architectures completes gallery space and residence overlooking a Toulouse golf course
Zaha Hadid is working with Japanese architecture and engineering firm Nikken Sekkei to win back the Tokyo Olympic stadium project after its first competition-winning design was thrown out in July (+ slideshow). More about Zaha Hadid teams up with Nikken Sekkei to submit new bid for Tokyo 2020 stadium
This moulded concrete cinema by Irish studio dePaor Architects is built on the site of a Georgian merchant's house in Galway, west Ireland (+ slideshow). More about Cast-concrete Galway Picture Palace by dePaor Architects stands behind a Georgian terrace
A pair of steel-clad volumes with pitched roofs and glazed gables provide additional living space behind the ornamental facade of this Victorian terrace in Melbourne (+ slideshow). More about Nic Owen Architects updates ornate Melbourne terrace with ribbed steel extension
Maison&Objet 2015: this cast-iron candle holder by Norwegian designer Lars Beller Fjetland automatically puts out the flame just before the wick burns out (+ movie). More about Lars Beller Fjetland designs self-extinguishing Moment candlestick for Wrong for Hay
The wooden frame of this two-storey family home in Japan's Shiga Prefecture is disguised by a layer of ridged steel panels (+ slideshow). More about Junichi Kato clads House in Shigaraki in dark brown-coated steel
Argentinian studio Adamo-Faiden has designed a group of concrete summer houses called Sociedad de Mar for a patch of forest on the coast of Uruguay (+ slideshow). More about Concrete holiday homes by Adamo-Faiden occupy Uruguay's coastal woodland
A primary school building in Tel Aviv features a facade of perforated screens patterned with an image from a painting by Russian-born artist Marc Chagall – the school's namesake. More about Paritzki & Liani recreate Marc Chagall painting in perforated aluminium for Tel Aviv school facade
Studio Aa has converted a former boiler house in south Amsterdam to create a new headquarters for a family-run investment company (+ slideshow). More about Studio Aa transforms Amsterdam boiler house into contemporary office space
Norwegian designer Andreas Engesvik has created a range of textiles for Danish brand Georg Jensen Damask, with subtle patterns based on hand-drawn lines. More about Andreas Engesvik's hand-drawn grids inform textile patterns for Georg Jensen Damask
This house in Mexico for an elderly couple features four box-shaped buildings arranged around a central courtyard, three of which contain bedrooms and bathrooms for their visiting children (+ slideshow). More about Casa 4.1.4 by AS/D features separate living spaces for different generations of the same family
London Design Festival 2015: Turkish designer Bilge Nur Saltik has created a line of hand-cut patterned glass vessels that create a kaleidoscope effect when filled with flowers (+ movie). More about Bilge Nur Saltik's glass OP-vases create kaleidoscopic floral effects
Since an installation comprising 100,000 balloons at London's Covent Garden has been so popular, we've created a new Pinterest board filled with designs that incorporate inflatables – or at least look like they do – including Marcel Wanders' ultra-lightweight chair and a cloud-like transport solution.
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More about Explore images of balloon-related design on our new Pinterest board
A double-height space filled with rare vinyl records and magazines is the centrepiece of this music library and venue in Seoul, which was commissioned by credit card company Hyundai Card as a free space for its members (+ slideshow). More about Hyundai Card Music Library by Choi Moongyu is a lending library for vinyl records
Mexican firm Anagrama has installed a dome of interlocking wood panels at a library in Monterrey, creating bookshelves that arch over a stepped reading area (+ slideshow). More about Wooden gridshell by Anagrama forms shelves inside a Mexico library
Music: patterns of light spring up around a Martian-like world in this music video that directors Pablo Barquin and Junior Martínez created for Floating Points (+ movie). More about Light painting illuminates an arid landscape in Floating Points' Silhouettes music video