@Setanta,
This is actually the first one I though of when I saw this thread....they {Elton/Bernie} never really give an exact address, but it's easy enough to sort out...as it has become a shrine of sorts.
What happened here
As the New York sunset disappeared
I found an empty garden among the flagstones there
Who lived here
He must have been a gardener that cared a lot
Who weeded out the tears and grew a good crop
And now it all looks strange
It's funny how one insect can damage so much grain.
....the gardener is of course John Lennon, and Mark David Chapman is the "one" insect who took him away from us nearly 30 years ago....in front of his home, the Dakota....72nd St. and Central Park West NY, NY.
There was an episode of Mad About You, where they somehow managed to get into Yoko's apartment {usual sitcom goofyness that I don't remember} and it was actually Yoko herself, but I'm sure it was a sound stage, and probably a prop baby grand....anyway, Paul asked if he could sit down at the piano....Yoko agreed, so he sat down and hit one single note. I'm not ashamed to admit that that one note brought tears to my eyes....like I said, even though I'm sure it was a prop...just the thought that there will never be another single note issued from that piano from John is very moving.
A gardener like that one no one can replace
Edit....found the clip on Youtube, Yoko was not even in that scene, was the maid they talked to...and after the one note, the piano stool fell apart...didn't remember that part either.