Since Constantine I the Christian world has been led to believe that Golgotha, the mount on which Jesus was crucified, is beneath the site where today the Holy Sepulcher Church is built. Helen, the mother of Constantine herself, is credited for identifying its location and instigating the building of the Church upon its site. But Golgotha, often named Calvary, is on the other side of Jerusalem, just outside the eastern wall, northeast of the Temple Mount.
A spot there is called Golgotha,—of old the fathers’ earlier tongue thus called its name, “The skull-pan of a head:” Four Books Against Marcion Book II 259
The Early Church knew that the place where Jesus was curcified looked like a skull, and to be more specific, a cranium, which is the skull-pan or upper part of the skull. Instead of using the ancient greek word skulla (skull), the Gospels used the word 'Kranion' when referring to its appearance.
And coming to a place named Golgotha, which is called Cranium Place, they gave him vinegar to drink mixed with gall. Matt 27,33-34a And they brought him to the place Golgotha, which is translated, the place Cranium. Mk 15,22 And when they were come to the place which is called Cranium, there they crucified him and the criminals, one on the right side, and the other on the left. Lk 23,33 And he bearing his cross went forth into a place called Cranium Place, which is called in the Hebrew Golgotha. Joh 19,17
There is only one mount near Jerusalem which looks like a cranium, i.e. the skull-pan of a head. And this mount is only 330 meters from where the Temple Entrance once stood.