Sep 21
This magnificent historic rail bridge spans a wide section of the river Forth just north of Edinburgh. It’s high and long as well as large in structure, with huge stone pylons and massive steel or iron spans under both compression and tension to hold up the railway tracks with long goods trains passing through regularly decade after decade.
This doesn’t exactly dwarf Brunel’s earlier bridge over the Tamar, but it took engineering up to the maximum level for its time.