The High Buildings of Madinah (Hadith No. 1597)

Volume 3, Book 30, Number 102:
Narrated Usama (radiallaahu `anhu):
Once the Prophet (sallallaahu `alayhi wasallam) stood at the top of a (looked out from upon one) castle amongst the castles (or the high buildings) of Medina and said, "Do you see what I see? (No doubt) I see the spots where afflictions will take place among your houses (and these afflictions will be) as numerous as the spots where rain-drops fall."
Prophet (sallallaahu `alayhi wasallam) foretold the innumerable trials and tribulations that were to come after him. This is one of the signs of his prophet-hood - his informing of the unseen (future), that of which he was given knowledge by Allah.
And indeed, the trials have been like the rain after his demise. May Allah save us from them.
Why did Imam Bukhari include this Hadith in the book of Virtues of Madinah? I found the answer when I read the chapter under which he mentions this Hadith: "The high buildings of Madinah". :)
Who would've thought? SubhanAllah, the way he derived lessons and connections from the texts is amazing. May Allah grant us wisdom and knowledge as was given to him.