This was my 5th visit to Barcelona so did not visit the buildings with chimneys in part because the one that we had planned to visit was closed. My little LUMIX TZ90 performed well by capturing these either from the street or the tourist bus top.
Beautiful details of what one can see on roof tops. I am always amazed at what one could find if he/she looks very carefully for particularities. Have been to Barcelona 2 years ago and cannot remember seeing even one of of these. Re Lumix, i think their zooming is magnificent. I have an old Lumix Fz45 bridge camera which had a great zooming in power.