The crown of thorns.

 

John 19:5-6
5 Then Jesus came out, wearing the crown of thorns and the purple robe. And Pilate said to them, "Behold the Man!" 6 Therefore, when the chief priests and officers saw Him, they cried out, saying, "Crucify Him, crucify Him!"
NKJV
Interesting history of crucifixion.

The Crucified Man Bone

John 19:17-18
17 And He, bearing His cross, went out to a place called the Place of a Skull, which is called in Hebrew, Golgotha, 18 where they crucified Him, and two others with Him, one on either side, and Jesus in the center.
NKJV
[El Greco - art print, picture - Christ on the Cross] Acts 2:36-39

36 "Therefore let all the house of Israel know assuredly that God has made this Jesus, whom you crucified, both Lord and Christ." 37 Now when they heard this, they were cut to the heart, and said to Peter and the rest of the apostles, "Men and brethren, what shall we do?" 38 Then Peter said to them, "Repent, and let every one of you be baptized in the name of Jesus Christ for the remission of sins; and you shall receive the gift of the Holy Spirit. 
NKJV
Luke 24:46-47
Then He said to them, "Thus it is written, and thus it was necessary for the Christ to suffer and to rise from the dead the third day, 47 and that repentance and remission of sins should be preached in His name to all nations, beginning at Jerusalem.
NKJV
Rom 3:23
23 for all have sinned and fall short of the glory of God,
NKJV
2 Cor 5:19-21
20 Now then, we are ambassadors for Christ, as though God were pleading through us: we implore you on Christ's behalf, be reconciled to God. 21 For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him. 
NKJV