One of these places, excavated by Antonio Ferrua and discovered in 1955, houses frescoesdepicting Hercules raising Alcestis, Alcestis standing over the deathbed of Admetus, and Herculesclasping arms with Minerva, though more unique is one in which a group of men stand over a corpse,which has been identified as a medical lesson. Another of these sites features a damaged wallpainting depicting a man talking to a woman holding a child, which has been controversially identifiedas the earliest depict
One of these places, excavated by Antonio Ferrua and discovered in 1955, houses frescoesdepicting Hercules raising Alcestis, Alcestis standing over the deathbed of Admetus, and Herculesclasping arms with Minerva, though more unique is one in which a group of men stand over a corpse,which has been identified as a medical lesson. Another of these sites features a damaged wallpainting depicting a man talking to a woman holding a child, which has been controversially identifiedas the earliest depiction of (*) Mary, while other artwork found at these sites includes a ceiling fresco ofthe story of Jonah flanked by orants and all surrounding a depiction of the "Good Shepherd". Includingsites named for Priscilla and St. Callixtus, which housed the bodies of several popes, these are, for 10points, what underground burial chambers, often associated with the Christian persecutions? 
One of these places, excavated by Antonio Ferrua and discovered in 1955, houses frescoesdepicting Hercules raising Alcestis, Alcestis standing over the deathbed of Admetus, and Herculesclasping arms with Minerva, though more unique is one in which a group of men stand over a corpse,which has been identified as a medical lesson.
 catacombs of Rome [accept logical equivalents] 