Why do Christians worship crosses?

What makes you think that Christians worship crosses?  

Who knows why? After all, if Jesus had been stoned to death, whould Christians wear a little bag of pebbles around their necks, and have a huge pile of boulders in their churches?

The Greek word rendered “cross” in many modern Bible versions is stau·rosʹ. In classical Greek, this word meant merely an upright stake, or pale. Later it also came to be used for an execution stake having a crosspiece. The Imperial Bible-Dictionary acknowledges this, saying: “The Greek word for cross, [stau·rosʹ], properly signified a stake, an upright pole, or piece of paling, on which anything might be hung, or which might be used in impaling [fencing in] a piece of ground. . . . Even amongst the Romans the crux (from which our cross is derived) appears to have been originally an upright pole.”

Was that the case in connection with the execution of God’s Son? It is noteworthy that the Bible also uses the word xyʹlon to identify the device used. A Greek-English Lexicon, by Liddell and Scott, defines this as meaning: “Wood cut and ready for use, firewood, timber, etc. . . . piece of wood, log, beam, post . . . cudgel, club . . . stake on which criminals were impaled . . . of live wood, tree.” It also says “in NT, of the cross,” and cites Acts 5:30 and 10:39 as examples. (Oxford, 1968, pp. 1191, 1192) However, in those verses KJ, RS, JB, and Dy translate xyʹlon as “tree.” (Compare this rendering with Galatians 3:13; Deuteronomy 21:22, 23.)

I don't know

but

I know that I've personally never known a Christian to do so.

They are being mislead because he did not die on a Cross according to Scriptures. 

Many would point to the Bible for the answer. For example, according to the King James Version, at the time of Jesus’ execution, onlookers made fun of Jesus and challenged him to “come down from the cross.” (Matthew 27:40, 42) Many other Bible translations read similarly. Today’s English Version says of Simon from Cyrene: “The soldiers forced him to carry Jesus’ cross.” (Mark 15:21) In these verses, the word “cross” is translated from the Greek word staurosʹ. Is there a solid basis for such a translation? What is the meaning of that original word?

It is absurd that they worship an execution device.

Easier to scam with crosses.

Briefly, they don't. Christians worship God.

Only the RCC do that and even paint crosses on their forehead at certain times of the year.

I've never met anyone that worshiped a cross...