Luke 23:33 says Jesus was crucified in Jerusalem at the place called Calvary. The other Gospels use the term Golgotha, "the place of the skull."
This discrepancy has led to a difference of opinion about the location of the crucifixion. In the fifth century the emperor Constantine's mother, guided by a vision, located a split rock, supposedly cracked by the earthquake that occurred at Christ's death. A cathedral was built on the spot where today stands the Church of the Holy Sepulcher. But in the nineteenth century a rocky hill resembling a skull became another candidate, even though the Bible does not mention a hill. A very early tradition says "the place of the skull" referred to the fact that Adam's skull was supposed to be buried there, but this is unprovable and highly unlikely.