6th century BC in architecture From Wikipedia, the free encyclopedia Reconstruction of Ishtar Gate in the Pergamon Museum, Berlin Dates approximate 575 – Ishtar Gate in Babylon constructed.[1] 530 – Ennigaldi-Nanna's museum established 520 – Temple of Olympian Zeus, Athens, begun (completed 132 CE). 515 – Construction of Persepolis, capital of the Achaemenid Empire, begins. 500: Temple of Athena (Paestum) in Campania constructed. The Magadha imperial capital of Pataliputra (modern day Patna) in the Indian subcontinent is begun with construction of a small fort (Pāṭaligrama) near the Ganges. References ↑ Ruggeri, Amanda. "The Great Gate of Ishtar: A door to wonder". www.bbc.com. Retrieved 17 March 2019. Related Articles