The pattered glass which coats Leicesters new John Lewis department store offers layered transparency, its designers explain.
Described by the Guardian as an "extraordinary piece of architectural eye-candy", the facade not only provides the structure with a striking aesthetic, but also serves a more practical purpose.
Writing in the publication, sector commentator Jonathan Glancey notes that almost all of the £44 million buildings four walls are made out of glass.
As such, the frosted, mirror-finished swirls and curls serve to keep people working in the building cooler.
"Its striking facade was derived from a fabric design commissioned by Richard Ovey, a London linen-draper, way back in 1803," Mr Glancey adds.
Farshid Moussavi and Alejandro Zaera Polo, founding partners of Foreign Office Architects, tell the resource that the design could be interpreted as a play on traditional Indian decoration or a net curtain.
There are 26 John Lewis department stores across the UK.