'which religious sites in Jerusalem are deemed holly and by what reglion?

Answer 1

The Church of the Holy Sepulchre - by christians
the wailimg wall and the mount Moria - by jews
the Dome of the Rock and al-Akza Mosque by muslims

and many more sites considered holly by the 3 religions, but this three the most.

see:

http://en.wikipedia.org/wiki/Wailing_Wall
http://en.wikipedia.org/wiki/Church_of_the_Holy_Sepulchre
http://en.wikipedia.org/wiki/Al-Aqsa_Mosque

http://en.wikipedia.org/wiki/Dome_of_the_Rock
http://en.wikipedia.org/wiki/Temple_Mount
http://en.wikipedia.org/wiki/Category:Buildings_and_structures_in_Jerusalem

Answer 2

The Wailing Wall, or West Wall. Holy to Jews because it is the last remnant of the Great Temple. That's one.