I'm watching Supernatural for the first time and just saw the episode "Lucifer Rising". In it there is a room, the Green Room, that's super fancy looking with white walls, gold accents/trimmings, and infinity mirrors, and they place a bunch of burgers on a platter for Dean.
From the wiki:
Dean finds himself transported to what appears to be a luxurious hotel room - referred to as the Green Room by Zachariah.
Where is this fancy room? Or was it a set built just for the show? What's the location it was shot at? Where was this scene shot (in real life, out of universe)?