Switzerland is known for its mountains, and you can see that quite well on this map, especially in the middle to southern areas. Especially impressive is the canton of Uri (UR), which is one long valley; this is very nicely visible on this map.
Robert Kosara is Senior Research Scientist at Tableau Software, and formerly Associate Professor of Computer Science. His research focus is the communication of data using visualization. In addition to blogging, Robert also runs and tweets.