which part is used as the prayer section?
Western Wall
Western Wall
The term Western Wall 
where is the wailing wall and why is it a holy spot The Western Wall's holiness in Judaism is a result of its proximity to the Temple Mount. Because of the Temple Mount entry restrictions, the Wall is the holiest place where Jews are permitted to pray, though the Foundation Stone, the most sacred site in the Jewish faith, lies behind it. is the wall sectionized? Yes,  the southern part of the Wall and  the Little Western Wall
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Western Wall [SEP] Prayer section vs. entire wall
The term Western Wall commonly refers to a exposed section of a much longer retaining wall, built by Herod on the western flank of the Temple Mount. Only when used in this sense is it synonymous with the term Wailing Wall. This section faces a large plaza and is set aside for prayer. In its entirety, the western retaining wall of the Herodian Temple Mount complex stretches for , most of which is hidden behind medieval residential structures built along its length. There are only two other revealed sections: the southern part of the Wall (see Robinson's Arch area), which measures approximately , and is separated from the prayer area by just a narrow stretch of archaeological remains; and another, much shorter section, known as the Little Western Wall, which is located close to the Iron Gate.