This museum in Warsaw, Poland, by Finnish studio Lahdelma & Mahlamäki Architects has a deep, cavernous entrance hall that cuts right through the building (+ slideshow). More about Museum of the History of Polish Jews by Lahdelma & Mahlamäki Architects
Fashion brand Topshop presented its Spring Summer 2014 collection on an indoor catwalk covered in real grass (+ slideshow). More about Topshop Showspace SS14 by Pernilla Ohrstedt Studio
Partitions that don't reach the ceiling create the illusion of a larger space in this renovated flat in Japan by Naruse Inokuma Architects (+ slideshow). More about Skyroom by Naruse Inokuma Architects
Product news: industrial designer Konstantin Grcic's Traffic seating collection for Italian design brand Magis has gone into production. More about Traffic by Konstantin Grcic for Magis
Competition: Dezeen has teamed up with the V&A Shop to give readers the chance to win a copy of a book about British furniture design since 1945. More about Competition: five copies of Modern British Furniture to be won
News: the completion of Art Nouveau architect Antoni Gaudí's Sagrada Família basilica in Barcelona is simulated in this movie released to show the final stages of construction anticipated before 2026, 100 years after the death of the architect (+ movie). More about Animation shows completion of Antoni Gaudí's Sagrada Família
This bulky concrete school of art, design and architecture was completed by Japanese architect Tadao Ando at the University of Monterrey in Mexico and is one of over 300 projects being showcased this week for the World Architecture Festival in Singapore (+ slideshow). More about Centro Roberto Garza Sada de Arte Arquitectura y Diseño by Tadao Ando
Product designer Alan Nguyen has taken a series of extreme close-up photos of 3D-printer filament waste, revealing how the machines can produce detritus of surprising beauty. More about Filament. 01-04 by Alan Nguyen
World Architecture Festival 2013: we're reporting on the World Architecture Festival in Singapore this week. Category winners from the first day include a whirlpool-shaped aquarium and a sports college perforated with the shapes of athletes. More about World Architecture Festival 2013 day one winners announced
A smooth, curved concrete shell forms the exterior of this art studio in Boeotia, central Greece by Athens studio A31 Architecture (+ slideshow). More about Art Warehouse in Boeotia by A31 Architecture
Inside Festival 2013: Dezeen is in Singapore for this year's Inside Festival, where category winners of the awards programme from the first day include a shopping centre with colour-coded atriums and a lift scaling the fortified city walls of Valletta. More about Inside Awards 2013 day one winners announced
This house in Saitama, Japan, by Naf Architect & Design looks like it's been chopped in two and split open. More about House Snapped by Naf Architect & Design
Dezeen promotion: Italian tile manufacturer Refin has launched its latest collection of porcelain tiles in London and Bologna. More about Frame-Up tile collection by Refin
London designer Benjamin Hubert created a screen of branching modular structures to surround the auditorium at trade show 100% Design during the London Design Festival (+ movie). More about Amass by Benjamin Hubert for 100% Design
Product news: the Apollo lighting range by east London studio International has gone into production (+ slideshow). More about Apollo lighting range by International
The facade of this house in the English seaside town of Margate appears to slump down into the front yard (+ movie). More about From the Knees of my Nose to the Belly of my Toes by Alex Chinneck
The long narrow bodies of snakes inspired the shapes of this pair of matching woodland hideaways that stretch out between the trees of a park in northern Portugal (+ slideshow). More about Tree Snake Houses by Luís and Tiago Rebelo de Andrade
A flightless spaceship is slowly creeping around a former Cold War airbase near Utrecht (+ slideshow + movie). More about Secret Operation 610 by Rietveld Landscape and Studio Frank Havermans
Product news: Californian company Soma has launched an hourglass-shaped carafe and a biodegradable filter to fit in the top. More about Carafe and water filter by Soma
A city for fish modelled on a high-rise development underway in Xi'an, China, has been installed in a gallery next to the construction site (+ slideshow). More about Fishpond City by Lu Yang, Christian Lindle and Raoul Bukor