From the train station "Bologna Centrale" (1.8 km, 20 min): see red line on the map.
Get out from the train station (exit Piazza Medaglie d'oro), cross the avenue and walk along via Indipendenza. Make a left on via Irnerio and go straight for about 1 km. Turn right in via de Rolandis, walk across piazza Puntoni, then make a left on via San Giacomo, and finally right on via Selmi n. 2.

From the BLQ Aerobus stop "Indipendenza-San Pietro" (1.2 km, 15 min): see blue line on the map.
When you get off the bus, walk on your right on via Indipendenza for a short distance and turn left on via Rizzoli. Follow this street until you reach the two towers; then walk along via Zamboni, which you will find on your left. After crossing piazza Verdi make a right on largo Trombetti, then via Belmeloro and finally turn left on via Selmi.