Designed by Spain-based designer firm Willy Müller Architects (WMA), Mercabarna-Flor looks more like a contemporary art museum than a repurposed warehouse. Now used as a flower wholesaler, the old building has been completely refigured to create three dedicated sections: one for cut flowers, one for plants and one for accessories (though quite what flower accessories are, we don’t know). Though you’re only able to bulk-buy here, it’s still worth a look for the breathtaking design alone.