Considering the Hotel Maria Luisa in Córdoba?
A VT member wrote the following comment about visiting Córdoba:
Bus from Train Station to the Mezquita by Hopkid
If you arrive in Cordoba by train, it's pretty easy to get down to the Mezquita via the bus. Exit the train station to the north and cross the street to the bus station. The local buses stop outside the station on this street. Catch the No. 3 which will take you into the City Centre. Be sure to keep an eye out for the Roman ruins that this bus passes. They'll be on your left as you face the front of the bus.
Get off at the corner of Calle de San Fernando and Paseo de la Rivera which parallels the Rio Guadalquivir. It's best to ask the bus driver to let you know when to get off. As the bus makes a left turn onto Paseo de la Rivera, go in the opposite direction (right) and follow the Paseo de la Rivera for about a quarter mile until you see the Mezquita which will be on your right. It's pretty much opposite the Puente Romano and the Torre de la Calahorra on the opposite side of the river.
The bus cost 0.90 euro.