We know that He was crucified in a place where those who witnessed it would be acutely aware of His "crime." “Pilate had a notice prepared and fastened to the cross. It read: JESUS OF NAZARETH, THE KING OF THE JEWS. Many of the Jews read this sign, for the place where Jesus was crucified was near the city, and the sign was written in Aramaic, Latin and Greek.” ~~John 19: 19-20

It was the custom of the Romans to carry out their crucifixions alongside those roads that would be considered the busiest, where the highest number of people could view them, and thereby be deterred from committing the same crimes or types of crimes. 

If Gordon's Calvary is the correct site of the execution of Jesus, it would have been at the intersection of the routes to Damascus and Jericho, specifically trade routes. Therefore, plenty of people would have seen Jesus' crucifixion and would have read the sign placed above His head.

We know that after the death of Jesus, a man named Joseph of Arimathea asked Pilate for His body, was granted it, and that he took the body to a new tomb, which was both close by and near a garden.

“Later, Joseph of Arimathea asked Pilate for the body of Jesus. Now Joseph was a disciple of Jesus, but secretly because he feared the Jews. With Pilate's permission, he came and took the body away...At the place where Jesus was crucified, there was a garden, and in the garden a new tomb, in which no one had ever been laid. Because it was the Jewish day of Preparation and since the tomb was nearby, they laid Jesus there.” ~~John 19:38-42

We know that the tomb belonged specifically to Joseph, that it was carved out of rock, that it had a stone rolled across its entrance and that Mary Magdalene and "the other Mary" (as there were just so many of them!) sat in a place opposite the tomb, witnessing all of this.