<p>About the only similarities I can think of - </p>
<ol>
<li> The Arb could stand in for the Hogwarts forest.</li>
<li> Hogsmeade and Northfield are probably about the same size.</li>
<li> No quidditch, but broomball is quite popular.</li>
<li> The Carleton colors (maize and blue) are similar to the colors of Ravenclaw.</li>
<li> Carleton holds an annual Midwinter Ball (and yes, students do dress up).</li>
</ol>
<p>Of all the colleges I’ve visited, Sewanee comes the closest to Hogwarts.</p>