The word to fill the blank space is "The
Crucifixion". <span>
<span>Complete sentence will be as:
The Crucifixion was not a popular theme for catacomb paintings. Catacombs found in and
around Rome are the graveyards/cemeteries of the Christians. In Rome,
Naples and Sicily are found a huge number of catacomb paintings which were made
around 4th century.</span></span>
