1) Fushimi castle, in Kyoto, Japan. Even though it's not the original structure built by Hideyoshi, but a replica, it's still a great place to shoot in. Any Japanese garden across Japan, they simply make the best gardens imo. 2) Any gloomy medieval dungeon. 3) A Japanese zen garden. Simply the definition of calmness. No one has ever managed to capture the essence of one in a photo, I'm hoping I'll be the first. 4) East Asian wilderness, they have a unique set of plants there that don't get enough coverage imo.
Windsor palace. I'd show up with a model or two, a few cameras, 100 rolls of medium format film and about fifty sheets of 4x5, and do a two day nude shoot. Then I'd try to get us all out of England without being lynched.