Mark 15:22

‘And they bring him to the place Golgotha, which is being interpreted ‘the place of a skull'.'

There is no mention in the Gospels of a hill, but the site would be outside the city walls (Hebrews 13:12) and on a road leading in so that passers by might see and take warning. There may have been a skull shaped hill there or it may simply have been a place seen as ‘unclean' because skulls had been found there. This might explain why it was a regular place for executions, because it was an unclean place. Or it may have been called this because it was a place of regular executions. But here it is seen as symbolic of the fact that Jesus has been brought to the place of death. The fact that Mark translate (there is no need to translate place names) confirms that the name is to be seen as significant.