Ben Jonson:
Right down the end of Corporation Street. Walk past Modern Body Art, down to the Aston Expressway and walk underneath the Subway. Go straight over to the other side and up the ramp. The Ben Jonson is a pub on the corner on the right hand side.
Kind of across the road from the Fire station and Aston Uni/BIAD.
Or, here's the address for SatNav/Google maps:
275 Corporation Street, Birmingham, B4 7DP