Waterdeep:
i guess it must be canon if they keep putting it in FR materialCity of Splendors: Waterdeep offers an in-depth examination of the great city, including an overview of the city: its history, a who's who, information on laws, and rules for running and playing in a Waterdhavian campaign. Information on the people of Waterdeep covers non-player characters, arcane schools, armed forces, guilds, nobility, prestige classes specific to the city, and more. Also included in the book are discussions of specific Waterdeep locales, adventure locales, and new monsters. An extensive appendix gives information on new equipment, magic items, psionic powers, poisons, spells, and more.