This room, located at the far right of the building as you enter the Cathedral, was originally used as the Mens' Lounge, a place where members or candidates could gather before and during degrees to socialize and relax. Today, it houses a collection of Masonic and historical memorabilia that has been donated to the Scottish Rite Library & Museum by various benefactors.

Found throughout the room are several display cases containing various Masonic aprons, coins, headgear, jewels, medallions, sculptures and other artwork. There are also several photos documenting the construction of the Cathedral, a collection of clown memorabilia and a sculpted bust of Judge William Seat Fly, 33°.