Network Rail has published a new online archive that shows historic images of the original architectural drawings of the Forth Bridge, Paddington station and other iconic railway structures.
The website provides public access to a special selection of the Network Rail archive, which holds over 5M records.
Some of the most significant structures and stations are featured, including the Forth Bridge, the Tay Bridge, Box Tunnel, and many main line stations. The archive holds records by the most famous railway engineers including Isambard Kingdom Brunel, Robert Stephenson, Joseph Locke and William Henry Barlow.
While the drawings date from the earliest days of the railway they are still useful operational records today, as many show information such as foundations and original construction details, said Network Rail.
With only a small number of the archive available for the first phase, visitors are invited to ask the archivist questions about the collection.