as in things that I find interesting, that I would like to learn more about or in some cases study, etc.

• psychology - social psychology to be precise, human behaviour sciences, mental disorders, that kind of thing
• Antarctica - I have an endless fascination with the idea that there's a whole continent that's still mostly covered in ice and is free of any permanent human residents... also, there's penguins. and a lake called 90 Degrees East under the ice. how cool is that?