Sunday-The main day of worship :)
Christianity, as a whole, has only one 'Holy Book' and that is the Bible. There are various versions of it in translation around the world.
Judaism, Christianity, and Islam have all claimed the Holy Land for themselves.
Jerusalem, the holy city
Christianity is holy as god is holy and we are his children.
The three religions.
Believe in The Father, Son, and Holy Spirit.
The main site shared Holy by these three religions is Jeruselum.
ity of Jerusalem: Religions: Judaism, Christianity, Islam
There are more than three Jewish holy days, but the answer you're looking for is Rosh Hashanah and Yom Kippur, which total three days. For more about these and the rest of the Jewish holy days and other occasions, see this linked page.
I think I know what you mean The three different - the father - the son - the holy spirit
According to Christianity, God is One in three Persons--the Father, the Son, and the Holy Spirit.