Considering the Ac Palacio Del Retiro in Madrid?
A VT member wrote the following comment about visiting Madrid:
Underground Infos by paoseo
The Metro in Madrid has 11 lines , it works from6am to 1.30am every day. There are 2 types of tickets (besides the Travel Pass): the SINGLE TICKET, that is valid for one journey and costs 0.87 ?; and the METROBU'S, a ticket that is valid for 10 journeys and costs 4.57 ? (it's also valid for Madrid urban buses). You can buy them at the entrance of the Underground, or at all ticket offices or machines, or tobacconists'.
When Metro is closed, there are night-buses (bùhos=owls) that serve different areas of the city departing from Plaza de Cibeles.