It is not what you think. It would appear in the streets of Sweden, specifically in the town of Malmö, mice have opened a replica of the restaurant Noix De Vie. On the sidewalk, right underneath the original Noix De Vie, is a miniature version of the restaurant that appears to be geared towards a clientele of significantly smaller stature. Fortunately, for our sanity, mice aren't doing this. Instead, it is an art piece.
These small establishments geared towards the mice populations are scattered throughout the country and crafted and installed by artists within the country. Nevertheless, that doesn't stop these from being adorable.