A gold breastplate fragment is seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua

A silver and gilt plate is seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua

A wine horn is seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua

A sword is seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua

Wine horns are seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua

Artwork "the Shapur Plate" is seen during the exhibition "Feast Your Eyes: A Taste for Luxury in Ancient Iran" at the Smithsonian's National Museum of Asian Art in Washington D.C., the United States, on Jan. 6, 2020. Photo:Xinhua