I know that you said "fort" but that was probably a typo. Perhaps this song will clarify it:

King of the Mountain

(Written By: Paul Nelson/Larry Boone)

I gave her that diamond she dreamed of
And I bought her a home with a view
I took her to the end of the rainbow
But all I left her was blue

Seems I never had time to love her
And now it seems time just stands still
I thought I was king of the mountain
But I was only a fool on the hill

Chorus:
Now I'm here alone after leaving her lonely
Lord I'm living with a memory
I know I can't kill
I thought I was king of the mountain
But I was only a fool on the hill