Palma’s Plaça d’Espanya is the geographical kilometer zero of Mallorca. And it is busy day and night. Commuters on their way to the train, tourists waiting for the bus, kids meeting after school, people resting on a bench in the shade. A churro stand maybe, and most likely a couple of street musicians. In the midst of it all Gaspar Bennàzar’s Barometer, a genuine weather station where you get the recent Mallorca weather report. The square column with the strange gabled roof is often ignored…