The columns of the building show its different faces if orbiting in Textured mode. The same is in BGEngine, the 1st view player should run around the column to see appearing and disappearing faces.
I have already unticked Backface Culling in Shading, but it stays the same.
Multitextured shading
indeed, select the object, go to edit mode, select all, hit T (opens left side panel) go to the shading/uv’s tab, scroll it a bit down hit either recalculate (should fix it instantly) or hit flip direction (this is best if you only select the faces that needs to be flipped).