Naqsh-e Rustam is an ancient necropolis near Persepolis where the tombs of four Achaemenid kings have been carved from the rock face.
The most famous of these tombs is that of Darius the Great (c. 522-486 BC).
The other three tombs are believed to be those of Xerxes I (c. 486-465 BC), Artaxerxes I (c. 465-424 BC), and Darius II (c. 423-404 BC).
The tombs were looted after Alexander the Great's conquest.

Carved almost 800 years later, Naqsh-e Rustam also portrays important Sassanid reliefs.
The most well known of these is the triumph of Sharpur 1 (239-270 AD) where two captive roman emperors are portrayed.
The magnificent investiture of Ardashir I (224-239 AD) is a miraculous condition considering its age!
The other Sassanid reliefs are the equestrian victory of Shapur II (309-379 AD), the equestrian victory of Hormozd II (302-309 AD),
the victory of Bahram II (274-294 AD) and the investiture of Narse (294-302 AD).

Naqsh-e Rustam is also the site of the tower known as the "Ka'bah of Zoraster" which has in the past been identified as a Fire temple, but this is no longer deemed accurate.

The photographic technique used to enhance the bas reliefs is described here.