What are the things you like about them?
I'm not very familiar with paintings, it will be great if you have something in mind that you want to share with me.
Gustav Klimt's painting are wonderful. Check out the "Portrait of Adele Bloch-Bauer I".
During Klimt's "Gold Period", he used real gold leaf in his paintings.
The painting was stolen by the Nazis..there's even a movie about it: Woman in Gold (2015).