This is the main mode of transportation for the residents of La Paz, said to be the highest city in the world. I took a taxi from the airport to the nearest purple cable car station and rode it. (I called an Uber from the airport but it didn't come, so I had no choice but to negotiate with a taxi driver. In the end, I ended up sharing a ride.) I enjoyed an aerial stroll all the way to the top. As it is the main mode of transportation for the residents, it is inexpensive (3 Bolivianos), and you share the ride with locals.