Naqsh-e Rajab is an archaeological site located in Iran, about 4 kilometers north of the ancient city of Persepolis. It is an ancient rock relief site that dates back to the Sassanid Empire, between the 3rd and 7th centuries CE. The site features four large rock reliefs that depict the investiture ceremonies and the victories of the Sassanid kings. The site also has some inscriptions in Pahlavi script, which provide information about the kings and the scenes depicted in the reliefs.

The most prominent of the rock reliefs is the one depicting the investiture of Ardashir I, the founder of the Sassanid Empire, who is receiving the ring of kingship from Ahura Mazda, the Zoroastrian god of wisdom and creation. The other three reliefs show the victories of kings Shapur I, Shapur II, and Bahram II, over their enemies. One of the reliefs shows a figure of Shapur I on horseback, with the Roman emperor Valerian kneeling before him in submission.

Naqsh-e Rajab is an important historical site that provides valuable insight into the art, culture, and history of the Sassanid Empire. It is a popular tourist destination in Iran and attracts visitors from all over the world. The site is well-preserved, and visitors can easily access the reliefs and inscriptions.