I was in Ottawa over the holidays and went to the National Gallery. I used to go there all the time when I was in school and now I only get to go whenever I'm in town.
This is one of my favourites in the permanent collection; Hieronymus Bosch's "The Temptation of St. Anthony" (painted around 1490). It's a tiny little painting that's hard to find if you don't know exactly where it is in the gallery. Luckily for me it has kept the same spot on the wall since 1999.