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@@ -137,7 +137,7 @@ <h1>data: past, present, and future</h1>
 <a href="https://scienceandsociety.columbia.edu/directory/madisson-whitman">Madi Whitmann</a> 
 &amp; 
 <a href="http://www.columbia.edu/~chw2/">chris wiggins</a></li>
-<li>class time: MW 11:40am-12:55pm; 303 Seeley W. Mudd Building
+<li>class time: MW 11:40am-12:55pm; <a href="https://www.apam.columbia.edu/map-mudd-building">303 Seeley W. Mudd Building</a>
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 <li>
 Grader Office hours (for Python & coding questions):