One of the highlights is a collection of 50 unpublished photographs from the family album of Oriol Maspons (Barcelona, 1928-2013), focused on Coral Majó, the photographer's partner and muse.

This story appears in the January 2018 issue of National Geographic magazine. If birds left tracks in the sky, what would they look like? For years Barcelona-based photographer Xavi Bou has been ...