From the railway station:
From the "Bahnhof SBB" stop, take tram number 8 to the "Aeschenplatz" stop, there take tram number 15 to the "Denkmal" stop.

From the motorway:
From the A2 - Basel-Süd (Basel South) exit, follow the signs for Aeschenplatz; after the crossing take the first street to the right.