As Miss N says, the Hither dial can give you a different view of what's in the way, but it doesn't really solve the problem, because the Hither dial doesn't affect the render.

This is an unavoidable problem in 3D work, because
we can put cameras in impossible places!

Here's an especially awful example that puzzled me for a long time.

In the upper picture, there's a mysterious zigzag.  I couldn't get
rid of the zigzag while still showing the view I wanted.  Why? 

The lower picture shows that the view I wanted was from inside
the pillar!  A real camera couldn't go there, and a real camera
also can't fool us by seeing through an obstacle in Preview
mode but showing it in Render mode. 

So the best solution is to do what you'd do in the real world:
move the camera, or get the obstacle out of the scene temporarily.

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