The combination of stored, preserved frames and the Bulgaria Air A220 fleet meant Sofia was high on my agenda. My stay was at the Ibis. I only transited SOF for a short period (2230-0930) to maximise frames and minimise time.
You have views of movements and part of the runway/taxyway system from odd numbered rooms. Highest floor is 5. Floors 6 and 7 are offices.
There are various locations you need to walk to if you want to see the stored frames.
For locations use this map:-
(Note this map is only up-to-date as of 24 May 2025 and will not be further updated)
All locations were accessed by foot on Saturday morning between 0600 and 0930. There are paths between all the locations I mention. All in all a worthwhile visit.
