An upward-angled photograph depicts a construction site in Sofia, Bulgaria, under an overcast sky

An upward-angled photograph depicts a construction site in Sofia, Bulgaria, under an overcast sky. A multi-story concrete structure is under active construction, with rebar extending vertically from its uppermost visible level and wooden formwork in place. A red concrete pump truck boom, bearing the partial brand name "SCHWING," extends from the lower left, articulating to position its discharge hose directly above the top slab of the building. Three silhouetted construction workers are visible on the uppermost level: one stands near the concrete pump's hose, another is positioned slightly to the right, and a third further right. A fourth silhouetted figure is partially visible in the lower-left foreground. The yellow arm of an excavator or similar heavy machinery is partially visible on the far right, obscured by the bare branches of a deciduous tree which occupies the right foreground. Two horizontal utility lines traverse the upper half of the frame. The scene is largely backlit, casting the construction elements into silhouette against the cloudy sky.