A cable-car system links the city center of La Paz with its neighbor El Alto, Bolivia, photographed on June 2, 2014. #

People sit inside cable cars of the green line, an urban ropeway running between El Alto and La Paz, at a station in La Paz on December 4, 2014. #

A cable car between La Paz and El Alto passes above a neighborhood in La Paz, Bolivia, on October 10, 2014. #

In this June 2, 2014 photo, two women ride above La Paz in a cable car that links the city center with its neighbor, El Alto. #

A mother and child ride in a cable car over La Paz on October 10, 2014. #

A view from a cable car on the newly inaugurated green line between La Paz and El Alto on December 4, 2014. #

Cable cars are lined up before being installed by a Bolivian Air Force (FAB) helicopter for the Red Line cable car system in La Paz on January 7, 2014. #

A cable car moves above La Paz on October 10, 2014. #

A woman watches a cable car between La Paz and El Alto on October 10, 2014. #

In this June 2, 2014 photo, indigenous Aymara ride in a cable car that links La Paz with its neighbor El Alto. #

A woman looks at the city of La Paz from the Jacha Qhatu cable car station in El Alto on July 23, 2015. #

The shadow of a cable car falls on a building in the Chijini district of La Paz, as it travels past on July 23, 2015. #

Cable cars travel above La Paz on October 10, 2014. #

Cable cars pass overhead as a dog sleeps in front of a building below in La Paz’s district of Kota Uma on July 23, 2015. #

A partial view of the capital city of La Paz, taken from inside a cable car on October 10, 2014. #

An Aymara woman rides in a cable car on April 8, 2014. #