If I visited Barcelona only for one day, I think that I would spend at least half of it in the Montjuic, because of the many attractions that one can find there, including great views of the city.
In this case, the image shows the Telecommunications Tower, also known as “Calatrava Tower”.
It is located in the Olympic Park area of the mount and it represents an athlete holding the olympic flame. It is one of the great designs by the Spanish architect Santiago Calatrava. There is also an additional characteristic of the tower, and it is that it can be used as a solar clock.
There is an additional view in the WS, with landscape orientation.
Kind regards and a nice weekend!