Question: In which country and within which first-level administrative region of that country was this picture taken?
Clues:
1.These high-rise apartment buildings adopt a precast concrete slab structure (such buildings are referred to as slab blocks).
2.The number "72" is prominently spray-painted on the exterior wall of the building on the left.
3.This wide multi-lane boulevard is equipped with a central median strip.
4.The style of the roadside metal guardrails.
Answer: bulgaria,varna/varna/varna district/varna district/varna region/varna region/varna province/varna province
Category: Location Identification