Four Achaemenid kings are buried at Naqsh-e Rostam. The necropolis contains four monumental cross-shaped tombs cut high into the cliff near Persepolis in modern Fars Province, Iran.
The tomb of Darius I is identified by its inscription. The other three are traditionally assigned to Xerxes I, Artaxerxes I, and Darius II, who ruled during the fifth century BCE. Their elevated tomb facades show the king standing before Ahura Mazda above rows of subject peoples and soldiers.
Naqsh-e Rostam is more than a royal cemetery. The site also preserves Elamite remains, the Achaemenid Ka'ba-ye Zartosht, and Sasanian reliefs carved centuries later. Those later carvings include scenes celebrating victories over Roman emperors, linking the Sasanian dynasty to earlier Persian imperial grandeur.
A common mix-up is counting the incomplete fifth tomb as a fifth royal burial. Its occupant is uncertain, and it is not one of the four completed Achaemenid kingly tombs normally meant by this question. Cyrus the Great was buried at Pasargadae, not Naqsh-e Rostam.