The Great Assembly is a building on Bajor located in the capital Ashalla. It is the tallest building located there and possesses a large dome and many large columns. It is large enough to accommodate every member of the Chamber of Ministem and the Vedek Assembly. The First Minister and the Kai also have their own seats.
In 2372, Kira Nerys contacted Shakaar Edon and asked him for an emergency audience with the Great Assembly during the Ferengi blockade of the planet. Most of the ministers and Vedeks did not attend as they wanted to stay with their respective areas with the people who were suffering food shortages.
Kira outlined her and Benjamin Sisko's plan to resolve the crisis by having Quark released from Gallitep and take him to Ferenginar aboard the USS Defiant and let him negotiate with Grand Nagus Zek. (DS9 novel: The 34th Rule)