photo #8539530

Glenfinnan Viaduct Glenfinnan, Scotland Scotland, spanning the River Finnan and overlooking Loch Shiel. Completed in 1901, it features 21 semi-circular arches and is the longest concrete railway bridge in Scotland. The viaduct gained fame as a filming location for the Harry Potter series, where it served as the route for the Hogwarts Express. Visitors can experience the viaduct by traveling on the Jacobite Steam Train, which operates along the West Highland Line, offering scenic views of the Scottish Highlands.