Satisfy your inner culture vulture at Bank Mandiri Museum. See if there are any guided tours or ask a museum employee to direct you to some of the highlights.
If you're staying a while in Old Jakarta, Bank Mandiri Museum is an interesting place to start your exploring. This museum is one of many attractions that'll keep you on the hop here. National Monument, Gelora Bung Karno Stadium, and Jakarta Cathedral are also waiting to be explored nearby.