A concrete walkway projects from the street onto the roof of this concrete home in Caxias, Portugal, which is designed to go unnoticed from a hilltop road (+ slideshow). More about Greenery and observation decks top hillside villa by António Costa Lima
Triangular facets give a folded appearance to the bare concrete facade of this house in Argentina by local architect Nicolás Campodonico (+ movie). More about Faceted concrete T-shape facade fronts courtyard house in Santa Fe
Dutch designer Gert-Jan Soepenberg has created a concrete vase that mimics a structural element of Brazilian architect Oscar Niemeyer's Palácio de Alvorada. More about Oscar Niemeyer facade informs cross-shaped concrete vase
An angular concrete box has been stacked on top of a rectilinear one to create the form of this yachting club facility near Buenos Aires (+ slideshow). More about Estudio Ramos completes concrete sailing clubhouse on Argentina's Paraná River
The remains of a former miner's residence in the Arizona desert provided the foundations for this tiny steel and concrete retreat by designer David Frazee (+ slideshow). More about Desert hideaway built among the ruins of an old miner's shelter in Arizona
These two glass and steel pavilions erected by architecture collective De Kort Van Schaik Van Noten in the gardens of a disused presbytery form a community hall and youth club for a Belgian village (+ slideshow). More about Glazed pavilions form a community centre in the grounds of an old Flemish manse
This glazed house built from thick concrete slabs was designed by Swiss architect Gian Salis to follow the slope of a plant-covered hill in Germany's Rhine Valley (+ slideshow). More about Gian Salis' House on a Slope steps down a hillside in the Rhine Valley
Gianni Botsford Architects worked with translucent concrete to create this boxy garden pavilion in Zurich, dedicated to "the old fashioned art of smoking" (+ slideshow). More about Smoking Room by Gianni Botsford Architects is a translucent-concrete garden folly
A corrugated steel roof supported by bamboo columns provides shelter for three buildings, a bicycle workshop and a playground at this community centre in Bangladesh (+ slideshow). More about Bamboo-framed canopy shades Bangladesh community centre by Schilder Scholte
Evergreen foliage is printed onto the vinyl facade of this cabin on a Swedish island by Murman Arkitekter to create the illusion of a mirror reflecting the natural surroundings (+ slideshow). More about Swedish holiday home by Murman Arkitekter pretends to mirror a juniper grove
This concrete tower of interconnecting red staircases was designed by Thai firm Supermachine Studio for an elevated game of hide and seek (+ slideshow). More about Supermachine Studio adds labyrinthine staircase to seaside park in Thailand
This low-cost concrete block house outside Monterrey was designed and built by its owners, with support from a non-profit social housing project led by local architecture office S-AR (+ slideshow). More about S-AR's Casa Caja is a prototype for low-cost homes that can be built by their owners
Exactly 30 years of footage of a paper pulp press in action is being projected onto a concrete screen inside this pavilion, created by A2 Architects and artist John Gerrard on the site of a former paper mill (+ slideshow). More about Riverside concrete pavilion in Norway pays tribute to a paper press
Each facet that makes up the facade of this community building in Poland by OVO Grabczewscy Architekci is covered in a sheet of shiny ridged copper to create the impression of flames (+ slideshow). More about Copper panels give a flame-like appearance to Museum of Fire in Poland
A concrete volume projects from the top of a sand dune to form the upper level of this holiday home on the Argentinian coastline by local architect Luciano Kruk (+ slideshow). More about Concrete retreat by Luciano Kruk sits on a sand-dune in Buenos Aires
A block appears to have been pushed out from the middle of this concrete tower by Bechter Zaffignani Architekten, which accommodates a control centre for a power station in western Austria (+ slideshow). More about Concrete tower by Bechter Zaffignani houses a control centre for an Austrian power station
The triangular form of this concrete home in Greece by Tense Architecture Network creates a large window overlooking olive groves and the Gerania Mountains (+ slideshow). More about Tense Architecture Network completes a "frugal" concrete home in a Greek olive grove
This asymmetric concrete chapel by EMC Arquitectura teeters on the edge of a mountain in El Salvador (+ slideshow). More about Skewed concrete chapel by EMC Arquitectura balances over a mountainside in El Salvador
Maison&Objet 2015: French designer Matali Crasset has paired concrete and metal to create four faceted objects, each for displaying different items. More about Matali Crasset creates faceted presentation cases from concrete
Muka Arquitectura's ribbed concrete residence completes the "first piece of the urban puzzle" for a largely undeveloped area of the Spanish city Ciudad Real (+ slideshow). More about Slabs of corduroy-textured concrete encase a Spanish home by Muka Arquitectura