As the countless taxi drivers wait for the nonexistent travelers to arrive, their purpose and efficiency as transportation becomes extremely underutilized and even wasteful.

A typical Barcelona park is left empty during siesta. The chairs, which are purposefully positioned ina conversation manner, are unoccupied and therefore underutilized.

Another typical Barcelona lot if left empty and vandalized. The juxtaposition to the impressive skyscraper in the background emphasizes the underutilization of the lot in the foreground.

In this photo, a simple lot is underutilized, leaving two blank and uninteresting adjacent walls, yet it begins to frame a different and unusual view of the distant apartment complex. 

The Barcelona Airport is shown underutilizing the ground level for any sort of program, yet this picture calls out the elevated circulation path that is being used.