Klingon High Council Chamber

From Memory Alpha, the free Star Trek reference.

The Klingon High Council Chamber is a location on the Klingon homeworld, Qo'noS, where the Klingon High Council meet.

In 2151, the NX class starship Enterprise arrived in orbit of Qo'noS. Captain Jonathan Archer, commanding officer of Enterprise, and several members of his crew entered the Klingon High Council Chamber to return Klaang to the Klingon Empire. (ENT: "Broken Bow")

Later that year, Subcommander T'Pol, Enterprise's science officer, reminded Captain Vorok that Archer had visited the Klingon High Council Chamber. The fact that the human captain had returned Klaang meant that Vorok's House was no longer feuding with another Klingon House. (ENT: "Unexpected")