Jerusalem is the first of the two Qiblahs (Qibla being the place where Muslims face when praying) and it is also the place where the Prophet Mohammed rose to heaven from. (Isra' and Mi'rag) I'm sure you could find everything online. I hope this helps you understand why it is holy, but from the way you phrased the question I have my doubts about how sincere you are with your question.
Israel comes to a halt for two minutes to commemorate Holocaust Remembrance Day (Haaretz)
Palestinians report four people wounded, including three children, in Israeli airstrikes before dawn on Thursday. Israel said its attacks were in response to mortar fire at IDF soldiers.04:42 05.05.16 | 4 comments
Ephraim Apter, who later fought in a number of Israel's wars and became a rich businessman, doesn't know if he could have done what the Bonczaks did.00:01 04.05.16 | 0 comments