The Solkan-bridge on the Soča (Isonzo) river.

The photo was taken with a DJI Mavic Pro in vertical panorama mode. The Solkan Bridge with an arch span of 85 meters (279 ft), it is the world's longest stone arch railroad bridge. It holds this record because later construction technology used reinforced concrete to build bridges. It was originally builtbetween 1900 and 1905, and officially opened in 1906.