This is one side of the Design Museum of Barcelona (Museu del Disseny de Barcelona). I was lucky to have been stranded in Barcelona for a few days and just happen to get a hotel right next door to this. While the city has more than enough ancient architecture, it is also a center for modern design and architecture that, beginning with Antonio Gaudi, spans the full breadth of imagination.
On the day that I took the clouds reflected on the windows of the building creating this unusual effect. This is an example of why I am just happy to walk around with a camera; unexpected things will appear all around.
I can get hyper-focused on small details and so I try to be aware of that with this particular type of photography. For instance, I might look at the shapes of the windows and miss the clouds reflected in them. Sometimes it takes a little effort to see interesting compositions right in front of me. Nevertheless, just by getting out and looking around it usually happens, like this, in unexpected ways.