Crucifixion

Crucifixion is a method of slow and painful execution in which the victim is tied or nailed to a large wooden cross and left to hang for several days until eventual death from exhaustion and asphyxiation. It is principally known from antiquity, but remains in occasional use in some countries.

The crucifixion of Jesus is a central narrative in Christianity, and the cross (sometimes depicting Jesus nailed onto it) is the main religious symbol for many Christian churches.

https://en.wikipedia.org/wiki/Crucifixion