Where Am I?

CLUES

1. This was the residence of emperors in the 16th and 17th centuries.
2. The city is surrounded by a wall that is 900 meters long.
3. The complex contains palaces, churches, monasteries, and other buildings marked by Hindu and Arab influences.
4. The city was the center of the nation’s government until 1864.

ANSWER  The fortress city of Fasil Ghebbi in Gondar, Ethiopia