One of the most efficient transport in the city of Prague is the tram network. It connect 21 day routes, 9 night routes and 931 trams running in the city 24 hours a day, one of the largest fleets in the world. Also its important to mention that this transport continues to be very economical.
The first tram line in Prague was opened in 1875, trams began to operate aboard the horse line along the Karlin – National Theater route by a Belgian businessman. It was until 1891 that the first electric tram line was opened in Letná district, a popular and recreational area in Prague. Today tram network is directed by Prague Transport Company.
This system transports more than 360 million passengers annually, the highest tram sponsorship in the world after Budapest.In this link you can find more information, even in Spanish language! About connections and schedules, for easy and precise use: https://czech-transport.com/index.php?id=156