Over the next decade, institutions in the U.S. and in other countries with mature higher education sectors will be struggling to justify the cost and value of a residential degree program when students get much of the same content and a good portion of the classroom experience from an online instructor in another city or across an ocean.

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Fourteen are primarily vocational, such as construction and retailing, but include a good deal of classroom learning.

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There are tours of the Lockhart classroom and Diagon Alley which are good, although if like me you would have preferred a livelier voice over on the first Potter DVD release you may be a little disappointed.

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So, as students zip up their backpacks for a return to the classroom, it's a good time for any traveler to pack up a trunk and visit one of these bustling campus locations.

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