I have to say, the fact that the Alexander Palace hasn't been messed with or sort of re-created (like the Catherine Palace), makes it more appealing to me. That's not to say I wouldn't like to see it restored, its just once new is mixed with the original, you won't be able to look at it and think "that's the actual doorway the IF walked through" or "the stones of the bridge are the very same ones as in the pictures," if that makes any sense. Likewise, I drive around my own hometown to look at old houses and compare with 100 year old pictures. After seeing how much of the Catherine Palace was destroyed after the war, it seems like the present Cath Palace is more of a replica.
In the Alexander Park, there are some partially ruined gates that were the entrance to a grand dukes residence, I think,, and I believe there is an old picture of two guards, one on horseback, in front of the gates. Could someone tell me where exactly those gates are?