Tvísöngur, by Lukas Khüne
Tvísöngur is a particularly unique building – a jewel lost in the wilderness of Iceland – but its creator was catering to a different kind of guest to the one most architects bear in mind: sound. This acoustic sculpture, created by artist Lukas Khüne, combines five domes, each of which amplifies the wind passing through it in different ways, creating a wonderfully evocative effect in its home, Iceland.