Twitter's headquarters in a 1937 San Francisco building features brightly coloured furniture, padded booths, games rooms and an enormous roof terrace (+ slideshow). More about Twitter's headquarters in an Art Deco tower by IA Architects and Lundberg Design
Steel reinforcing bars are used for shelving and partitions at this coffee shop in Dublin by VAV architects. More about Reinforcing steel creates shelves and partitions in Dublin coffee shop
The interior of Dutch fashion house Viktor & Rolf's first flagship store in Paris has been covered in grey felt by French studio Architecture & Associés. More about Viktor & Rolf's first flagship boutique is covered with grey felt
The Brazil headquarters for retail conglomerate Walmart's online division by Estudio Guto Requena has colour-coded levels and a terrace with a miniature golf course (+ slideshow). More about Walmart office in Brazil has a crazy golf course on the roof
British architect Alex Graef has combined two art deco apartments in Vienna to create a home with clean white walls, restored oak floors and a row of artificial skylights (+ slideshow). More about Viennese apartment with pretend skylights by Alex Graef
Ammar Basheir and Flower Michelin Limited have designed a retail interior for a west London boutique where garments are displayed within a series of bespoke metal screens (+ slideshow). More about Belgravia boutique reveals evening gowns through bespoke metal screens
One of the rooms at this year's Icehotel in Jukkasjärvi, Sweden, was designed by Pinpin Studio to look like the laboratory where Frankenstein's monster was brought into being (+ slideshow). More about Hotel made of ice contains a Frankenstein-themed room by Pinpin Studio
Garments in this retail interior by Australian design studio Sibling are displayed on copper clothes rails and stacked wooden cubes (+ slideshow). More about Kloke shop interior features copper clothes rails and wooden display units by Sibling
Decorative tiles salvaged from different apartments are rearranged in stripes across the floor of this Barcelona residence by Spanish studio Bach Arquitectes (+ slideshow). More about Traditional floor tiles arranged in stripes in a Barcelona apartment by Bach Arquitectes
Spanish design studio Masquespacio chose hospital colours for the exterior, interior and branding of this smartphone and tablet repair shop in Valencia (+ slideshow). More about Gadget repair shop fitted out in hospital colours by Masquespacio
Swedish designers Toki Drobnjakovic and Per Sundberg have renovated an underground strip club in Stockholm to create a workplace where walls are embellished with concrete set against bubble wrap (+ slideshow). More about Office in a former strip club featuring concrete cast against bubble wrap
British studio 1508 London has converted a Victorian post office in London into an apartment where perforated concrete shutters can be used to open and close different sections of the interior (+ slideshow). More about Victorian post office converted into an apartment by 1508 London
French studio Dank Architectes wanted to make this minimalist apartment they designed near Lyon look "more alive" in the photographs, so they staged scenes depicting the days before and after a messy party. More about Garden flat in Lyon photographed before and after a party
Movie: in our final exclusive interview from Inside Festival, Emre Açar of Alatas Architecture & Consulting explains how the Turkish studio converted a dark, narrow nineteenth-century house in Istanbul into a light office space. More about Wooden Istanbul house converted into a new office for Turkish tinned tuna company
The central staircase inside this office in Mexico City by architecture studio Goko is made up of different sections, including some that look like they are upside down. More about Staircase with upside-down sections at an office in Mexico
These hyper-realistic renderings by designer Michael Samoriz depict a cafe proposed for Ukraine with wooden beams criss-crossing over its ceiling. More about Hyper-realistic renderings of a proposed cafe in Ukraine
Movie: in our next exclusive interview from Inside Festival, Per Anders Borgen of Ratio Architects explains how the design team used raw materials to "remove the institutional look" from the interior of a student facility at St. Olav's Hospital in Trondheim, Norway. More about Norwegian medical training facility designed "not to look like a hospital"
Lithuanian studio Inblum Architects has inserted a bar into the attic of an old house in Minsk, Belarus (+ slideshow). More about Bar in the attic of an old house by Inblum Architects
News: the images in most kitchen, bathroom and bedroom catalogues are computer-generated but "no-one has realised", according to a leading CGI artist (+ slideshow). More about "No-one has realised" that most homeware catalogue images are renderings
Undulating branches emerge from the centre of a dining table at this Swiss natural foods restaurant by Ippolito Fleitz Group (+ slideshow + photographs by Zooey Braun). More about Ippolito Fleitz Group installs metal trees in natural foods restaurant