I recently came to realize that if something is spoken by a person who is passionate about the topic, it's very interesting.
I listened to a podcast about opera by one of the people in Joy 94.9. To me, opera was something my grandad used to listen to before he went to sleep on the radio. But on this podcast, the guy talks about it with so much enthusiasm that it really made me want to go to Australia and go to the opera house.
Also the history class and maths class are (I think)taught with passion and makes me interested. I think the teachers who have passion to whatever they are teaching are great. :-)