Comprising the remains of some 244 temples, World Heritage–listed Prambanan is Indonesia’s largest Hindu site. The highlight is its central compound, where its eight main and eight minor temples rise up majestically like ornate 9th-century skyscrapers. Erected in the middle of the 9th century – around 50 years later than Borobudur – little is known about its early history. It’s thought that it was built by Rakai Pikatan to commemorate the return of a Hindu dynasty to sole power in Java.