Route: Fort William to Mallaig
Duration: 1 hour, 25 minutes
Starting near Ben Nevis, the Jacobite steam locomotive travels through breathtaking mountainous hillsides. Harry Potter fans flock to the stunning Glenfinnan Viaduct (pictured) on this line, which was featured in the movies. Other notable landmarks on the route include the shortest river in the UK, Britain's westernmost mainland railway station, and the deepest seawater loch in Europe: Loch Nevis.