Blobitecture is curvy architecture, fluid protoplasmic shapes that completely redefine what a building ought to look like. You can now find examples in many cities, because adventurous architects are using computer-aided design systems to create structures that would otherwise be impossible to realise. Examples are Norman Foster’s Swiss Re building in London (dubbed the Erotic Gherkin) and Frank Gehry’s Guggenheim Museum in Bilbao and Walt Disney Concert Hall in Los Angeles.