Budapest metro M2

Metro Line M2, unofficially Red Line is the second line of the Budapest Metro. The line runs east from Déli pályaudvar in north-central Buda under the Danube to the city center, from where it continues east following the route of Rákóczi út to its terminus at Örs vezér tere. Prior to the 2014 opening of Line 4, it was the only line that served Buda.