all means of public transit, in this case, in Krakow. It was introduced in 1957, with tram services. However, these were replaced by buses in 1971 and last line was closed in 1986. Night trams were returned in 2013, with the three lines: 62, 64 and 69. The main interchange point, which ZTP refers it as "a meeting place for all night tram and bus lines" is at Teatr Słowackiego (near Kraków Main station). Portugal Lisbon: 6 night bus routes (201-202-206-207-208 and 210) run seven days. Slovakia Bratislava: Dopravný podnik Bratislava (DPB), the only provider of city public transport in Bratislava, operates 20 night routes between the hours of 23:30 and 03:30 (Mon-Sun). Fares are the same at night as during the day. The central transfer hub is Central Station and the sub-link transfer hub is Hodžovo Square. The basic interval of night services is 60 minutes, which is reduced to 30 minutes at certain times. DPB offer additional late night services during certain holidays, such as New Year's Eve. Košice: The public transit system in Košice is managed by the Košice Transit Company (Slovak: Dopravný podnik mesta Košice (DPMK)). The city is served by seven night bus lines numbered N1 to N7 from 23:10 to 04:30. Night services run at an hourly interval, and during the nights before a working day, the interval after 01:00 is extended to 90 minutes. The buses depart from Staničné námestie ("Station Square") in the centre of Košice. Žilina: Public transport in Žilina city is operated by Dopravný podnik mesta Žiliny (DPMŽ). Nightlines in Žilina started in 1970 with one route, the 50, which continues to operate as the sole night bus in the city, operating from 22:55 to 04:22 every 90 minutes. Route 50 makes a circuitous route of all major residential areas, and terminates at Železničná stanica, the principal railway station. As of Oct 2022, it departs from its termini four times during the night, and runs at the same time regardless of it being a work day (PRACOVNÉ DNI), school holiday (PRÁZDNINY) or weekend (VOĽNÉ DNI). Spain Barcelona: All bus routes serving Barcelona metropolitan area are organized by Autoritat del Transport Metropolità (ATM). Local services are operated in most part by Transports Metropolitans de Barcelona (TMB), although other bus services are operated by several private companies under common names. Nitbus (es) is the name of Barcelona's night metropolitan bus network. As