A funicular railway is a type of transportation system that uses a cable-driven mechanism to move cars up and down steep slopes. It typically consists of two cars that are connected by a cable, with one car ascending while the other descends. This design allows for efficient travel on hilly terrain, making it popular in mountainous regions and cities with steep hills. Funiculars operate on a track that is inclined at a significant angle, often exceeding 30 degrees. They are commonly found in tourist areas, providing access to scenic viewpoints or attractions, and are also used in urban settings to connect different levels of a city, such as in San Francisco or Lisbon.