zanimljivost

1. interesting fact; curiosity; point of interest
   Evo nekoliko zanimljivosti o Beogradu. — Here are a few interesting facts about Belgrade.
   Vodič nam je pokazao sve zanimljivosti starog grada. — The guide showed us all the sights of the old town.
2. interest; interestingness
   Posle prvih pola sata film gubi zanimljivost. — After the first half hour, the film loses its interest.

In the sense "interesting facts" it is usually plural: «zanimljivosti».