well organized. near the compund of prambanan you can also see some others temple complexes that was build at the same period as like the main temple complex. there is a free studio movie for the visitor to see the history of prambanan
Rent a Toyota AC car on a 3.5 hours drive which costs around 100 USD from Siem Reap. Then, ride a motorbike to ascend to the cliff of the mountain for another 5 USD