Seeing the Kremlin complex seems to involve a few separate tours - the architectural complex, the armory, and the diamond fund. Has anyone toured the complex with the rented audio guide? The cost of the guided tours could add up quickly, so I'm wondering if the handset with the recorded info is a good option.
Also, how hard is it to get into the Armory Museum? They start selling tickets 90 minutes before each session with only four session per day. Do they sell out quickly? I will be there May 19-23.