Brazilian firms Hype Studio and Santini & Rocha Arquitetos have added a lightweight roof with a leaf-shaped structure to the Beira-Rio Stadium in the city of Porto Alegre ahead of the 2014 FIFA World Cup, which kicks off on 12 June (+ slideshow). More about Hype Studio and Santini & Rocha Arquitetos modernise stadium ahead of Brazil World Cup
These new images by photographers Hufton + Crow reveal the pairing of angular and curved concrete volumes at the art and music complex completed by French architect Christian de Portzamparc in Rio de Janeiro (+ slideshow). More about Christian de Portzamparc's Cidade das Artes adds curving concrete fins to the Rio skyline
News: Herzog & de Meuron has completed an open-air gymnasium in Natal, Brazil – the flagship project for the Swiss firm's regeneration of the Mãe Luiza neighbourhood (photos by Leonardo Finotti + slideshow). More about Herzog & de Meuron completes Arena do Morro gymnasium in Brazil
An austere concrete wall screens the transparent lower floor of this house in southern Brazil, while the overhanging upper storey is masked behind a layer of timber slats (photos by Leonardo Finotti + slideshow). More about MAPA's XAN House in Brazil combines raw concrete with slatted timber
Twenty huge aluminium petals fold around this 42,000-seat stadium that sports architecture firm Populous has completed in Rio Grande do Norte, Brazil, ahead of the FIFA World Cup kicking off this summer (+ slideshow). More about Populous completes Arena das Dunas for FIFA World Cup 2014
This shell-like concrete structure with triangular slices is an auditorium designed by Luxembourg studio Valentiny HVP Architects for an annual music festival in the Brazilian town of Trancoso (+ slideshow). More about Concrete auditorium by Valentiny HVP Architects built for Brazil's Música em Trancoso festival
This reflective metal-clad box containing a restaurant rises like a periscope above a small shopping complex in São Paulo by French-Brazilian architecture office Triptyque (+ slideshow). More about Triptyque's shiny metal restaurant hovers over São Paulo shopping complex
A slender steel awning shades artists from the sun on the rooftop of this creative arts space that French-Brazilian studio Triptyque created for drinks brand Red Bull in a São Paulo warehouse (+ slideshow). More about São Paulo warehouse revamped into Red Bull arts centre by Triptyque
A square wall covered in plants announces the presence of this concrete housing block in São Paulo by Brazilian architecture studio TACOA (photos by Leonardo Finotti + slideshow). More about Wall of bushy plants fronts São Paulo housing block by TACOA
Large glowing letters spell out the Portuguese Spanish word for tea at the front of this tea house in Brazil by architects Estudio 30 51, the third cafe we've featured in the last seven days (+ slideshow). More about Huge glowing letters lead inside El Té tea house by Estudio 30 51
This performing arts centre in São Paulo by Brasil Arquitetura features huge concrete volumes lifted off the ground to create accessible public spaces and has been named on the shortlist for the Designs of the Year awards, announced this week (+ slideshow). More about Praça das Artes by Brasil Arquitetura features concrete boxes projecting over a public plaza
Architecture collective MAPA of Brazil and Uruguay has built a prefabricated modular home and transported it by lorry to a picturesque spot in the countryside outside Porto Alegre (photos by Leonardo Finotti + slideshow). More about Prefabricated modular home by MAPA delivered to the Brazilian countryside
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
A spiral staircase made from Brazilian ironwood links two floors inside this São Paulo house, which was designed by Brazilian architect Isay Weinfeld as a private gallery and guest house for two art collectors (+ slideshow). More about Casa Cubo by Isay Weinfeld
These night shots by New York photographer Andrew Prokos capture some of the buildings designed by late Brazilian architect Oscar Niemeyer in Brasília (+ slideshow). More about Niemeyer's Brasília photographed by Andrew Prokos
Brazilian architect Isay Weinfeld designed this apartment block in São Paulo as 62 "houses with yards", which are stacked on top of one another like the blocks of a Jenga game (+ slideshow). More about 360º Building by Isay Weinfeld
Movie: a recently completed concrete house in São Paulo is depicted as a luxury home from the 1950s in the latest architecture film by Brazilian architect Marcio Kogan. More about Casa P by Studio MK27
News: London studio Weston Williamson has won a competition to design a new athletics stadium for Brasilia with a concept for a shape-shifting structure that opens like a flower in response to wind direction and sunlight. More about Weston Williamson unveils shape-shifting stadium for Brasilia
Perforated yellow cupboards and drawers resemble slices of Swiss cheese inside this apartment in São Paulo by Brazilian architects Zoom Urbanismo (+ slideshow). More about Apartment Apinagés by Zoom Urbanismo
The setting for the 2016 Olympic Games in Rio will be a lagoon-side peninsula with 15 sports venues dotted along a network of snaking pathways, as detailed in this new set of visuals by masterplanners AECOM (+ slideshow). More about Rio 2016 Olympic Park by AECOM