The name "Makka", is mentioned in Quran surah 48:24, and again in 33:50 (but in parantheses), and is somehow even suggested to be one in the same with the name "Bakka", that is found in Surah 3:96. Even if Mohammed had used two names for Mecca, Islam's holiest city - it's most important geographical location since Adam - would then only be mentioned three times in the Quran. Compare this with the name Jerusalem, which is mentioned 814 times in 767 verses, in the Word or God. http://www.blueletterbible.org/search/translationResults.cfm?Criteria=jerusalem&t=KJV
Some Muslims suggest that there is at least a scriptural record of Mecca mentioned in the Old Testament as "Baca", by removing the following verse from context and trying to suggest a similarity between the Hebrew word Baca and the name "Bakka", from the Quran.
Psalms 84:6 [Who] passing through the valley of Baca make it a well; the rain also filleth the pools.
But the most obvious difficulty with this claim is the very next verse:
84:7 They go from strength to strength, [every one of them] in Zion appeareth before God.
Zion is mentioned 153 times in God's Word because it is the name of the easternmost hill of ancient Jerusalem. http://www.blueletterbible.org/search/translationResults.cfm?Criteria=zion&t=KJV&sf=5
Thus we see this passage describing a journey to ZION - to Jerusalem - to the Holy Land. Baca simply being a stop along the way.
Baca is the word for weeping and also for balsam trees