Széll Kálmán tér is a square in Budapest. It is one of the city's busiest transport interchanges, which is served by a station on Metro line 2, tram lines 4, 6, 17, 56, 56A, 59, 59A, 59B, 61 and bus lines 5, 16, 16A, 21, 21A, 22, 22A, 39, 91, 102, 116, 128, 129, 139, 140, 140A, 142, 149, 155, 156, 222. Wikipedia