The Hyrtl collection at the Mutter Museum includes 139 skulls from Europe. Each skull's brief story is written in German right on the bone. (Todd Vachon/WHYY)

Skull Scanning

The Hyrtl collection at the Mutter Museum includes 139 skulls from Europe. Each skull's brief story is written in German right on the bone.

Credit: Todd Vachon/WHYY