In this week's comments update, readers are discussing fortifying the US Capitol building and sharing their views on other top stories. More about "A fortress around the Capitol is the exact opposite of democracy" says commenter
Provocative architecture studio Opposite Office has envisioned fortifying the US Capitol building in Washington DC in reaction to the invasion of the building by Donald Trump supporters last week. More about Opposite Office proposes turning US Capitol into "fortress to protect democracy"
The latest edition of our Dezeen Weekly newsletter features Liam Young's suggestion that the entire population of planet Earth should live in a giant sustainable city. More about A metropolis housing 10 billion people features in today's Dezeen Weekly newsletter
The entire population of the earth could live in a giant sustainable city occupying a fraction of the earth's surface, freeing the rest of the world for rewilding and the return of stolen lands, according to a new movie by architect Liam Young. More about Liam Young's Planet City could tackle climate change by housing 10 billion people in a single metropolis
Italian studio Carlo Ratti Associati and architect Italo Rota have designed a concept for a tower called Playscraper, which is a temporary structure that consists of eight tennis courts layered on top of each other. More about Carlo Ratti Associati stacks tennis courts on top of each other for Playscraper building
French designer Camille Walala has reimagined London's Oxford Street as a car-free landscape, filled with blocky street furniture finished in her signature colourful style. More about Camille Walala shares colourful vision to make Oxford Street a car-free shopping district
Barcelona studio ON-A has envisioned a 26-hectare park in the city that would rise up to cover FC Barcelona football stadium to the west. More about ON-A proposes covering Barcelona's Nou Camp stadium with Nou Parc
Italian architect Piero Lissoni's studio has designed a conceptual skyscraper in New York as a self-contained community and vertical urban farm that would provide an example of living in the post-Covid era. More about Piero Lissoni designs conceptual New York skyscraper to be "self-sufficient garden-city"
Yarauvi is a conceptual nondenominational burial place, re-released by Miró Rivera Architects as founder Juan Miró mourned the death of his tutor, professor Michael Sorkin, from coronavirus. More about Miró Rivera Architects imagines floating city of the dead in response to coronavirus
A consortium of Dutch companies has developed a concept for a visitor attraction with passenger cabins spiralling up and down its facade and powered by solar panels and wind. More about Spiral Tower would be world's first "climate-neutral high-rise attraction"
In this week's comments update, readers are curious about a concept for a subterranean concrete home, which was inspired by the coronavirus pandemic, and sharing their views on other top stories. More about Commenters think "Bond villains" might like an underground concrete home concept
Sergey Makhno Architects has envisioned a concrete home built like a bunker for enduring the "unpleasant surprises" that may await in the post-pandemic world. More about Underground House Plan B is a hideout concept for the next global crisis
Design student Eliza Hague has created a concept for inflatable greenhouses made from shellac-coated bamboo paper to help residents of Jaipur, India, grow their own food. More about Eliza Hague designs inflatable origami-like greenhouses from bamboo and shellac
London designer Adam Nathaniel Furman's Democratic Monument is a proposal for town halls around the UK that would feature bright tiles and a diverse mix of architectural styles. More about Adam Nathaniel Furman's Democratic Monument is a colourful concept for town halls
American architect Marc Thorpe has designed this Hollywood Hills residence for an art collector to draw on the modernist Case Study Houses. More about Marc Thorpe designs Case Study 2020 house for Los Angeles
Architecture firm Scott Brownrigg has developed a concept for a pod with a transparent divider to allow people to meet vulnerable relatives safely, plus today's other design-related coronavirus news. More about Scott Brownrigg's Social Contact Pod would let people visit vulnerable family during pandemic
As the coronavirus pandemic puts a halt on all travel plans, Child Studio has collaborated with Plenaire to envision an idyllic seaside villa for the "perfect holiday". More about Casa Plenaire is an imaginary holiday home for lockdown escapism
Architecture firm Woods Bagot has designed a modular system that can adapt apartments to make them suited to working, playing and cooking, as people spend more time at home because of the coronavirus. More about Woods Bagot's modular AD-APT modifies apartments for working from home
German studio Opposite Office has proposed creating a temporary Covid-19 superhospital inside Berlin's unfinished Brandenburg airport during the coronavirus pandemic. More about Opposite Office proposes converting Berlin's Brandenburg airport into superhospital
Design studio Common Accounts imagines the funeral of the future, where liquefied bodies are used to fertilise plants and flowers, and social media accounts generate a virtual afterlife. More about Common Accounts designs an eco-friendly funeral for the digital age