The old city has colonial era buildings (Dutch) and is well worth a stroll. If you have time you should try and catch a traditional Wajang puppet performance. This graceful city on the island of Java is steeped in history and intrigue. It was here that the fossils of "Java Man" were found in 1890. Visit Borobudur, a splendid temple built during the Syailendra dynasty.
The currency here in Indonesia is the rupiah.