<p>I know the website says that no reservations are required, but should I call and let them know anyway? Just wondering.</p>
<p>When I went there, all you needed to do was to meet the group at a certain hour (4:00, I think). That if you were going to take the guided tour, if not, go at any hour</p>
<p>Unless you want to meet with an admissions official or someone else while you're there, you can just show up--tour times are on the website.</p>