The intrepid travelers at Curious Expeditions took this photo and many other fantastic shots at the Museo delle Cere Anatomiche (Museum of Anatomical Waxes) in Bologna, Italy. From Curious Expeditions:
These are Luigi Calori’s 2,000 human skulls, organized according to many different themes, from groupings of ancient Roman skulls to cluster of skulls from suicide victims. Calori was the head of the anatomy department of Bologna University in 1831.
Museo delle Cere Anatomiche (Curious Expeditions)