An afternoon train begins its steep journey from the car-free village of Wengen back down to the Lauterbrunnen valley floor far below.

The Wengernalpbahn may be the world's longest cog railway, but it looks like a toy up against the imposing cliffs and mountains that loom over the small Swiss village of Lauterbrunnen.

An electric cog railcar crosses the Lütschine river, shortly after departing Lauterbrunnen. Just after the bridge, the steep incline to Wengan begins.

An electric cog railcar dives out of Wengan station, heading down the mountain to Lauterbrunnen.