The Hur'q Central Museum was a subterranean museum on a Hur'q planet in the Gamma Quadrant that housed treasures taken by the Hur'q from other worlds, including Qo'noS. Some artifacts even came from Alpha Quadrant worlds. It contained security technology such as holographic fake walls, lifesign access sensors and force fields.
In 2372, Worf, Jadzia Dax, and Kor entered the Hur'q Central Museum looking for the Sword of Kahless. While the museum had been looted by others, the three discovered a holographic projection that hid the chamber containing Kahless' bat'leth from view. (DS9: "The Sword of Kahless")
The stage directions in the script described the building as "the remnants of the Hur'q Central Museum – where once, great treasures were grandly displayed. But now, the place is in ruins. Support beams have collapsed, a thick layer of dust covers everything and all the display cases are empty. The place has been looted – thoroughly." (Star Trek: Deep Space Nine Companion - A Series Guide and Script Library)