Located in Inverness-shire, Scotland, the Glenfinnan Viaduct was built from 1897 to 1901 and the West Highland Line connects Fort William and Mallaig. Located at the top of Loch Shiel in the West Scottish Highlands, the viaduct overlooks the Glenfinnan Monument and the waters of Loch Shiel.

The viaduct is the longest concrete railway bridge in Scotland at 416 yards (380 m), and crosses the River Finnan at a height of 100 feet (30 m). The iconic Royal Scotsman operates on the line and the viaduct has been featured in many cinematic moments, such as the Harry Potter film series.