Renfe, which stands for Red Nacional de Ferrocarriles Españoles, is a state-owned Spanish company that runs passenger trains throughout all major areas in Spain. It includes a high-speed system called the AVE that allows you to travel to major cities in minimal time. For example, you can travel from Madrid to Seville in 2h. 30min. These AVE trips can prove to be a bit expensive (I usually can find flights for cheaper), however if you need a quick way to get from one area to another, it can be very handy, especially since you get to skip those huge security lines at the airport. For day trips, such as the one to Toledo (mentioned here), Renfe is the perfect method of transportation. Averaging 30 minutes and approximately 10 euros each way, Toledo is just one stop beautiful retreat away from the city.