I am flying under a large concrete structure, likely a bridge or an elevated highway. The truck beside me has ".at" in its web address, which strongly points to Austria. The architecture and the style of the concrete pillars are typical of urban infrastructure in Central Europe. I suspect this is in a major Austrian city like Vienna. I am fairly confident in this assessment.

then: forward

The view under the bridge confirms the Austrian location, with the truck clearly marked "STRASSENBAU" (road construction). The environment is a typical urban underpass, likely the Gürtel in Vienna, which is famous for having roads running beneath the elevated U-Bahn lines. The pillars and the overall concrete structure are very characteristic of this specific area. I am highly confident this is in Vienna, Austria.

then: guess