Short answers, pulled from the story.
The oldest surviving architectural landmark in the Iranian style dates back to the eighth century BCE. Its roots stretch further into the Elamite era where the first structures were built as ritual imitations of the sacred mountains that ring the Iranian plateau.
The Dome of Soltaniyeh measures 50 meters in height and 25 meters in diameter. It stands as the third largest and tallest masonry dome ever erected and features a thin double-shelled design reinforced by arches between the layers.
Two major and innovative domed chambers were added to the Jameh Mosque of Isfahan in the late 11th century. Four large iwans were then erected around the courtyard in the early 12th century giving rise to the four-iwan plan in mosque architecture.
The Maidan-e Shah or Naqsh-e Jahan public square was laid out between 1590 and 1602. This vast rectangular square is surrounded by a two-level arcade and symbolizes the ambition of Abbas I to be one of the greatest sovereigns on the world stage.
The Sassanid castle in Derbent has been listed on Russia's UNESCO World Heritage list since 2003. This imposing castle is one of the most extant and living examples of splendid Sassanid Iranian architecture.
The Society of Iranian Diplomate Architects was founded on the 30th of January 1945. This organization marks the beginning of a new era for the profession of architecture in Iran.