In the central hall, a full-size reconstruction of the Kokiden Imperial Apartment at Seiryoden Hall in the Heian Imperial Palace was exhibited, which was the symbol of the Heian Museum of Ancient History.
ことに、中央ホールには平安宮内裏清凉殿の弘徽殿上御局の実物大復元模型が置かれており、平安博物館のシンボルとなっていた。