Johnny, I congratulate you for keeping the RR as up to date as possible giving your narrow time-frame.
I am very happy that you enjoyed your first visit to Romania and I hope it will not be your last.
pass are indeed quite nice. And related to your question, there was a fortress called "Cetatea Neamtului
" a few kilometers away from it, that serverd protecting all the passes in the area that linked the province of Moldova with the province of Transilvania. I think you passed near it when you were in Targu Neamt.
Hope you are enjoying Bulgaria and Turkey. How was Istanbul traffic? :)