Palace of Ardashir-e Babakan - Firuzabad (Fars Province)
Ardeshir Babakan Palace (also known as Palace of Ardeshir), dating back to 1800 years ago, is the first example of dome construction in Sassanid architecture and one of the pre-Islamic Iranian architecture. UNESCO has registered this monument as a World Heritage Site in 2018. It is one of the most amazing monuments of the Sassanid era.