Complex sentence: Some small stone steps near the cross were for horse riders to mount and dismount and close by are the remains of the buttercross, beside which is one of Castle Combe's two village pumps.
Split into simpler sentences: Some small stone steps near the cross were for horse riders to mount and dismount and close by are the remains of the buttercross. Beside the buttercross is one of Castle Combe's two village pumps.