Curiosity took pictures of these buildings on March 8 September 2013
Here I have indicated by white arrows where this group of buildings or buildings. And I blew/enlarged the whole area up.
The photo that interests us here on the official site.
It was taken by the robot on the ground on Mars “Curiosity” September 8, 2013, and posted September 9, 2013 on the official website. The details of the photo are: NavCam Right B, SOL 388.
The photo is listed on the official website here:
ANOMALY ON MARS AND “OUR” OTHER PLANETS: PHOTOS: