I saw this [click on images to enlarge] while out visiting the Noche en Blanco activities on Friday night. It was the first time this “aljibe romano” – basically an old Roman cistern – was open to the public. Apparently they’ve found more around, but this is the only one they’ve restored. What’s cool is that they date back to the second century. I was underground looking at something built many centuries and civilisations ago. Dust in the wind…