Bahram V, known as Bahramgur -- "Bahram the Onager" -- is one of the most colorful figures in Persian history. He earned his nickname by hunting wild asses on the steppe, and Persian literature remembers him as a king who loved music, wine, and the chase. If Sarvestan was indeed his hunting lodge, the location makes sense: the open plains of Fars would have teemed with game, and the building's modest size fits a seasonal retreat rather than a permanent court. But the presence of a small, unidentified structure just north of the main building complicates the theory. Some scholars believe this secondary building was a fire altar, which would make the complex a Zoroastrian sanctuary rather than a royal playground. The Sasanian minister Mehr-Narses, who served under Bahram V and several other kings, is said to have supervised its construction.

A visitor approaching from the south would have seen three iwans -- vaulted, open-fronted halls -- facing outward like welcoming arms. The central iwan led into the heart of the building: a large square hall crowned by a dome of baked brick, rising roughly 20 meters above the floor. Unlike the Palace of Ardashir at Firuzabad, which turned inward behind massive walls, Sarvestan opens to the landscape on all sides. Behind the domed hall lay a rectangular courtyard surrounded by smaller rooms, presumably residential quarters. The plan echoes Ardashir's palace -- central iwan, domed hall, courtyard beyond -- but the openness gives Sarvestan a different character entirely. This was a building designed to be part of its landscape, not defended against it.

The dome above the central hall represents a refinement of the technology first developed at Firuzabad two centuries earlier. Where Ardashir's engineers used simple squinches to bridge the corners of square rooms, the builders at Sarvestan created half-pavilion vaults -- a more sophisticated form that distributed weight more elegantly. The squinch zone is carefully defined by dogtooth moldings above and below, with four windows set between the squinches to admit light into the transitional zone between square walls and round dome. The dome itself was built of flat, fired bricks, while the squinches below used rough stone and cobbles set in gypsum mortar. This combination of materials -- refined brickwork above, rough masonry below -- suggests builders who understood the different structural demands at each level.

Sarvestan must once have been beautiful in its details. Remnants of carved patterns, floral motifs, and symbolic imagery survive around doorways, arches, and window frames. Engaged columns line the facade, and a dentilled frieze runs along the interior, marking the transition zones where walls become domes. But centuries of exposure on the open plain have stripped away most of the palace's decorative skin. What remains is structure: the bones of the building, the logic of how stone and brick were stacked to create enclosed space from an open landscape. The rubble stone and mortar construction, typical of Sasanian buildings, has proved durable enough to outlast the plasterwork and stucco that once covered it.

The Sarvestan Palace sits on Iran's National Heritage List, and the surrounding region draws visitors who come for Persepolis, Pasargadae, and the Sasanian sites at Firuzabad. But Sarvestan itself remains quieter, more enigmatic. The empty plain stretches in every direction. The three iwans still face south, though their arches have weathered and crumbled at the edges. Whatever Bahram V intended this building to be -- a place to rest between hunts, a sanctuary for tending sacred fire, a governor's hall for administering the surrounding countryside -- the mystery has become part of its appeal. The building endures precisely because it resists easy categorization, standing open on its plain like a question that sixteen centuries have not yet answered.