Binishells, the concrete bubble houses that are Hollywood's latest must-have

Binishells are gigantic inflatable concrete domes that rise from the ground thanks to propelled air. Photo: AFP

Hollywood stars have a taste for homes with a particular aesthetic. And Robert Downey Jr is one such star. The American actor has built a Binishell on his property in Malibu, Los Angeles County, in the United States.

But this house, made of concrete shell, is more than just an architectural oddity, since it could provide an alternative to today's energy-intensive buildings.