The Crystal Palace is an elegant, buffet-style restaurant. It is a near identical copy of the Crystal Palace found in Disney World's Magic Kingdom. The format of the restaurant has recently been converted from buffeteria style to an all-you-can-eat buffet. Although I haven't eaten here since the change, my Japanese friends rave about it.
Although the restaurant is technically located in Adventureland, it could be considered part of World Bazaar. Thematically it looks as though it belongs in World Bazaar, and its location is near Tokyo Disneyland's "hub", separated from the main areas of Adventureland.