It is one of the world’s finest collections, full of Monets, Miros and Picassos. But is the great Swiss architect’s extension for the Beyeler Foundation a worthy addition? Or is it a bit luxury boutique?
Source: [Guardian International](https://www.theguardian.com/artanddesign/2026/oct/05/peter-zumthor-beyeler-foundation-concrete-gallery-basel)