The Great Hall in 2371
The Great Hall interior in 2367
The Great Hall was a building in the First City on the planet Qo'noS, homeworld of the Klingons. By the late 24th century, the Klingon High Council had met there for hundreds of years.
In 2366, Starfleet Lieutenant Worf was brought to the Great Hall of the Klingon High Council to face discommendation in light of evidence that his father was responsible for the Khitomer Massacre of 2346. (TNG: "Sins of the Father")
In 2367, Captain Picard completed the Rite of Succession at the Great Hall when he named Gowron as the next chancellor of the Klingon Empire despite the efforts of the Duras sisters Lursa and B'Etor. (TNG: "Redemption")
In 2371, the Council gathered in the Hall to discuss the fall of the House of Kozak. (DS9: "The House of Quark")
Great Hall of Qam-Chee
The ancient Klingon city of Qam-Chee also contained a great hall which was the site of Kahless and Lukara's marriage, and a subsequent attack by forces loyal to Molor. (DS9: "Looking for par'Mach in All the Wrong Places")
Background
A sketch of the Great Hall by Richard James.
The design of the Klingon Great Hall (and other sets in "Sins of the Father") won an Emmy Award for Best Art Direction for Star Trek: The Next Generation production designer Richard James.
The Great Hall interior set was built on Paramount Stage 16.
The exterior of the Great Hall and the surrounding First City was a matte painting created by Syd Dutton at Illusion Arts. (Star Trek Encyclopedia)