Street lamps of Barcelona

During the weekend I spent in Barcelona, I've noticed the beautiful street lamps in the different parts of the city. However, it was only after I returned home and read about the subject that I realized that it is so well known that there are guided tours dedicated to Barcelona's street lights only. Some were designed by the well-known architect Gaudi. So, if you're interested in more information, all you have to do is look for it. As usual, I focus on shapes and designs.