I've seen many opium pipes from the past two centuries, mostly in pictures but also in museums. Some of these are exceptionally detailed with some incredible craftsmanship. It's a real shame so much was lost.
Wow, I had always wondered about that rotating room ever since I had to read Suetonius' The Twelve Caesars in college. Great that actual evidence was found.
Awesome site, by the way.
Best,
Mr. D