No it is not at all compusory that all christians should visit the holy land once in their lifetime.
Mecca is a holy city of Islam. That helped with the wealth because every Muslim should visit Mecca at least once in his life.
I could give you a figure, but yes a high number do. Hundreds of thousands of Christians travel to the Holy Land every year on pilgrimages. Many of them return year after year to visit the many Christian holy sites.
What IS the christian concept of a holy trinity: no christian understands it!
A Bible is the most important Christian holy book.
The holy month for Christians is the period of the great lent, 40 days of fasting.
In the Jewish faith (and some christian denominations) the holy sabbath is the day that God completed the universe and rested. In the Jewish Torah and the Christian old testament, the creation story says that God made that day holy and that no one should work on that day and they should instead worship their creator.
No. At least not for this Christian. You body is a gift from God and a Temple of the Holy Spirit. Would you write on the wall of your church?
The Holy Bible!
In all, I don't know, however, the christian church believes you should pray every day at least once and go to mass on Sundays and Holy Days of obligation.
What is that supposed to mean? Only God is holy. If you mean 'Is she a Christian?' then you should say so. I'm not sure if she is Christian or not I've heard several people say she is but only God knows a person's heart.
No, it is not; the Holy Father is a Christian concept.
The Christian holy day is a day for religious observance. The Christian holy day is considered to be a religious holiday for those of the Christian religion.