Which famous Scottish railway bridge opened in 1890 across the Firth of Forth?

The famous Scottish railway bridge opened in 1890 across the Firth of Forth is the Forth Bridge.

The bridge carries railway lines between South Queensferry, near Edinburgh, and North Queensferry in Fife. Its striking red steel structure uses a cantilever design, in which projecting sections support the central spans without requiring temporary supports across the water.

Construction began in 1882, and the bridge was officially opened on 4 March 1890 by the Prince of Wales, later King Edward VII. At the time, it was one of the largest and most ambitious steel structures ever built. Engineers Benjamin Baker and John Fowler were responsible for its design.

The Forth Bridge is often confused with the nearby Forth Road Bridge and Queensferry Crossing, both of which carry road traffic. The railway bridge became a UNESCO World Heritage Site in 2015, recognized for its engineering achievement and distinctive industrial appearance.