Museum on P4M-328, housing ancient artifacts unburied in years past. Included in the collection is a Stargate, a dial-home device based on diagrams (only pieces of the original unit were discovered), Serpent guard suits of armor, Horus guard helmets, and a partially depleted Goa'uld ark, housing a bomb.
One of the curators for the museum, Cicero, believed the "great ring" was a teleportation device. He has published papers on the subject, and had even written a book, but still his colleagues believed him to be a fraud. A night watchman for the museum was second-class security guard Jayem Saran.
Bad Guys - Hoping to discover the Key to Infinite Treasure, SG-1 instead gates into a museum during a reception to which they were not invited.