>> I was interested in it due to the small cog wheel segment which I am told is scenic
The sector between Göschenen and Andermatt is indeed scenic in a very rugged way, and I love experiencing the steep climb out of Göschenen.
Before you get to Göschenen, you go through Wassen, with its little white church perched on a prominent hill in the village. You see the church three times, out of alternating sides of the train, as the train negotiates a series of loops to gain height within a short distance as it makes its way up the mountain.
After the steep climb out of Göschenen you travel past the rugged Schöllenenschlucht (Schöllenen Gorge) and Teufelsbrücke (Devil's Bridge).
If you're quick enough, you can glimpse the red painting of the devil and goat on the rock face at the side of the (roadway) tunnel entrance at the end of the Devil’s Bridge. This painting depicts an old legend about how the bridge was built in this very challenging terrain, by means of bargaining with the devil.
Travelling towards Andermatt, sit on the left, ideally facing backwards, to get the best view of the gorge, as it passes in a flash. I have attached some photos of the Teufelsbrücke (Devil's Bridge) in the Schöllenenschlucht.
However, if your main interest is to experience cogwheel train technology, there are plenty of other alternatives in the areas you are visiting, all with stunning views, such as:
- Alpnachstad to Pilatus Kulm (steepest cog railway in the world)
- The Luzern-Interlaken Express also has a cogwheel section over the Brünig Pass.
Interlaken area and the Jungfrau Region
- Wilderswil to Schynige Platte
- Brienz to the Brienzer Rothorn
- Lauterbrunnen-Wengen-Kleine Scheidegg-Jungfraujoch
- Grindelwald-Kleine Scheidegg-Jungfraujoch
Montreux and Vevey
- Montreux to Rochers-de-Naye
If you spend any time in Zürich, you might like to experience a ride on a cogwheel railway and a couple of funiculars there - all are very short trips. The funiculars run on cables rather than cogwheels, and are driverless.
Dolderbahn cogwheel railway (1.3 km)
Take tram #3 from tram stop Central in the direction of Klusplatz and get off at the stop called Römerhof (4 stops, 5 minutes). The bottom station of the Dolderbahn is a bit tricky to find, being acccessed through a building (see attached screenshot from Google StreetView). At the top, you can walk for a few minutes to the Dolder Grand Hotel for a lovely view. The Dolderbahn runs daily from early morning until 23:30 about every 10 minutes. The trip up on the Dolderbahn takes 6 minutes and climbs over 160 metres. Standard Zürich public transport fares/tickets apply, and it is in the central fare zone (zone 110).
The Seilbahn Rigiblick funicular takes you up to small grassy park with bench seats, from where you can look out over Zürich, the Zürichsee (Lake Zürich), and the mountains beyond (if it is clear). It's a good place to go at dusk, to watch the city lights come on.
To get there from Zürich Hauptbahnhof (main station), take the #10 tram (direction Zürich Flughafen) to the tram stop called "Seilbahn Rigiblick" (6 stops, 9 minutes). The bottom station of the Seilbahn Rigiblick is at the far end of a small plaza near the tram stop. Standard Zürich public transport fares/tickets apply, and it is in the central fare zone (zone 110).
UBS Polybahn funicular
A very short trip up to the ETH (Federal Institute of Technology) terrace. From the broad ETH terrace, you have a nice view over the rooftops of Zürich. The very front of the Polybahn is an open air section, where you can stand to fully appreciate the funicular technology and the climb up the hill.
The entrance to the Polybahn is in Limmatquai, between Starbucks Cafe and the Hotel Limmathof, adjacent to the tram stop called Central. Central is one stop from Zürich Hauptbahnhof (Zürich main station) - you can easily walk there from the station. Standard Zürich public transport fares/tickets apply, and it is in the central fare zone (zone 110). I have attached some photos.