The most blessed and spiritual graveyard in the world: Jannatul-Baqi, wherein lie a great number of companions, wives, daughters and other family members of Rasulullah sallallahu alayhi wa sallam. 

Other cities consider it their pride to host a single saint; but here there are hundreds. All around lie at rest the men and women who heard the Prophet’s summons, and broke the idols of their forefathers, and gave their lives to his cause.

Allah’s Messenger SallAllahu alaihi wassalam said: “Peace be upon you, O abode of believers. What you were promised will come to pass tomorrow at a fixed time. We shall, Allah willing, soon join you. O Allah! Grant forgiveness to the people who are buried in al-Baqi’ al-Gharqad.” (Muslim)

And: “I am the first for whom the Earth will burst open, then Abu Bakr and then Umar. I shall then come to those who are buried in al-Baqi’ and they will be gathered along with me. After that I shall wait for the people of Mecca so as to be gathered among the inhabitants of the two sacred cities.” (Tirmidhi)

 source: Sunniforum.com