Just returned from Umrah. This year we went to Madinah first then Makkah.
On June 27, 2010, on our way to Makkah, may be about twenty five miles from it, I started noticing greenery. The whole desert looked like a faint green meadow. Then that reminded me of a hadith:
Prophet Muhammad (peace be upon him) said, "The Hour will not be established until the land of the Arabs returns to being pastures and rivers." (Sahih Muslim).
This greenery was not the result of some intentional gardening or landscaping that we see in the city. This is the desert I am talking about, and it was miles and miles of land.
With this, we see one more of the prophecies of our Prophet Muhammad, peace be upon him, come true.
For other minor signs, you may visit the following web site: http://www.discoveringislam.org/minor_signs.htm