A funicular or funicular railway, also called inclined railway or inclined plane, consists of a system of transportation in which cables attach to a tram-like vehicle on rails to move it up and down a very steep slope. The vehicle is specially designed for the particular inclination, so that seats and/or floors remain roughly horizontal. Typically the steepness of the track does not vary very much, which differentiates the funicular from a cable car on rails.
It is thus a hybrid between cable transport and rail transport. Two cars at the end of a cable go alternately up and down on either two tracks or one track which splits and rejoins in the middle.
The word "funicular" derives from the Latin funiculus (thin rope), a diminutive of funis (rope).
Funiculars often occur in mountains. Many cities have short funiculars on hills or cliffs, such as the Montmartre funicular in Paris, or those in the English seaside resort of Scarborough.
The world's steepest passenger railway is the Incline Railway, a funicular up the side of Lookout Mountain in Chattanooga, Tennessee, USA, with maximum grade of 72.7% (36° from horizontal, 90° being vertical).  
Funiculars are also called trams or cable cars in many places.
Gütschbahn in Lucerne from Führer für Luzern,
Vierwaldstättersee und Umgebung, Lucerne, 1893.
Funiculars of the world:
- Angels Flight, Los Angeles, California, United States "The shortest railway in the world"
- Bergen, Norway
- Incline Railway on Lookout Mountain in Chattanooga, Tennessee, USA
- Duquesne Incline and Monongahela Incline, Pittsburgh, Pennsylvania, United States
- Graz, Austria
- Gütschbahn, Lucerne, Switzerland
- Hastings, England
- Hong Kong Victoria Peak
- Harderbahn, Interlaken, Switzerland
- Istanbul, Turkey (underground)
- Likabitos, Athens
- Lynmouth, Devon, UK
- Montjuïc, Barcelona
- Montserrat (mountain), Catalonia
- Montmartre, Paris, France
- Mendelbahn, South Tyrol, Italy, build in 1903
- Naples, Italy
- Nazaré, Portugal
- Penang, Malaysia
- Quebec City
- Tibidabo, Barcelona
- Vallvidrera, Barcelona
- Wellington, New Zealand (Kelburn Cable Car)
- Wiesbaden, Germany (using water as weight to move the cars)
- Zagreb, Croatia