The Forth Bridge is a railway bridge located in Scotland, which spans the Firth of Forth, connecting the towns of South Queensferry and North Queensferry. The bridge was designed by Sir John Fowler and Sir Benjamin Baker and was completed in 1890. It is considered to be one of the greatest engineering marvels of the Victorian era.

The Forth Bridge is a cantilever bridge, meaning that it is supported by two towers with arms projecting from each side. The bridge is made up of over 53,000 tonnes of steel, and it took 4 years and 4 months to build. At the time of its construction, it was the longest bridge in the world, measuring a total length of 8,296 feet.

The bridge is still in use today, carrying approximately 200 trains each day. It has become a symbol of Scotland and is recognized as a UNESCO World Heritage Site. The Forth Bridge has also been featured in numerous films and television shows, including the Harry Potter series, and is a popular attraction for tourists visiting Scotland.