The extraordinary Ark Nova concert hall recently left its home in Japan for the first time. Designed by British sculptor Sir Anish Kapoor and late Pritzker Prize-winning architect Arata Isozaki, the purple structure resembles a giant donut, or a bean from some angles – or even something quite risqué, depending on how your mind works – and can accommodate up to 500 visitors. Continue Reading Category:Architecture, Technology Tags:Building and Construction, Inflatable, Switzerland