19th-century civil engineering

Location: Edinburgh, Scotland, United Kingdom ALAMY Image ID:3AH1T86 Triangular cantilevers march across the Firth of Forth, their riveted ironwork expressing the confidence of late-Victorian engineering. Opened in 1890, the Forth Railway Bridge bound Edinburgh to the north with unprecedented scale and stiffness, a lattice of red steel poised above tidal water. A small boat…