Equinox at the Salk Institute for Biological Studies, San Diego, California

© Sameer Mundkur/500px

Equinox at the Salk Institute for Biological Studies, San Diego, California

On both the spring and autumn equinoxes, the sun aligns with the sunken fountain channel in the courtyard of the Salk Institute for Biological Studies in San Diego, California. When it was being built in 1962, the courtyard was specifically left open and plant-free to represent the broad creative thinking that would go on in the labs, with the symmetry of the space symbolising scientific precision.