Here’s the alphabetical list of significant places in Maskerade. The chronological list of the same is here.
Ankh-Morpork – The largest city on the Disc where much of the action in the Discworld series takes place. Ruled by the Patrician. Home of Unseen University.
Assassins’ Guild – Headquarters for the members of the Assassins’ Guild in Ankh-Morpork. Best not to know its exact location.
Brass Bridge – One of several bridges in Ankh-Morpork. Probably made mostly of brass or something that looks like it.
Brindisi – They like Henry Slugg’s singing there.
Cable Street – Ankh-Morpork. A dwarf runs a deli there.
Collapsed Tower of Quirm – Constructed, so to speak, by Bloody Stupid Johnson.
Copperhead Mountain – Major peak in Lancre.
Creel Springs – Home of a wizard who replaced Granny Hopliss and of Shaker Wistley.
Elm Street – Ankh-Morpork. Has a mortuary.
Engravers’ Guild – In Ankh-Morpork. Some of the best members could engrave their name and address on a pinhead.
Genua – Main setting of Witches Abroad. Sounds like Genoa. Feels like New Orleans.
Guild of Musicians – To which Imp y Celyn and friends were denied membership.
Guild of Seamstresses – Ladies of negotiable affection.
Guild of Thieves, Cutpurses, Housebreakers and Allied Trades – An organization, first encountered in Equal Rites, perhaps known later as simply the Guild of Thieves or Thieves’ Guild.
Howondaland – A place of steaming forests where Hrun the Barbarian has done some of his best work.
Isle of Gods – Almost an island within Ankh-Morpork. Contains the Watch House, Opera House, prison, publishers, etc.
Klatch – Land of deserts and some jungles. Also the source of the phrase, “Pardon my Klatchian.” The country of Klatch is on the continent of Klatch.
La Scalda – Genua’s opera house.
Lancre – A small kingdom in the Ramtops. Home of Nanny Ogg and several other witches and wizards.
Lost City of Ee – Once sought in Al Khali by Cohen the Barbarian. Found by Abraxas and Truckle. May be related to the Forbidden City of Ee.
Morecombe, Slant, and Honeyplace – Prominent legal firm in Ankh-Morpork.
Ohulan Cutash – The “big city”, if you live in Bad Ass. Not that many people have heard of it.
Opera House – Center of Ankh-Morpork. The (new) City Watch house sits opposite it in Pseudopolis Yard.
Pseudopolis – A major city on the Disc. In The Colour of Magic, Death is headed there because of the white plague striking the city. Home of Eric.
Quarry Lane – Heavily populated by trolls.
Quirm Conservatory – Where Christine was trained (with limited success) by Mme Venturi.
Ramtop Mountains – One of the main mountain ranges Hubward.
Ratcatchers’ Guild – Mr Pounder was a member.
Rookery Yard – Neighborhood of the Shades where Henry Slugg grew up.
Sator Square – The area just outside Unseen University often occupied by many merchants.
Shades, The – A section of Ankh-Morpork that is darker (in more ways than one) than it sounds.
Shamlegger Street – In the Shades near Rookery Yard and Treacle Mine Road.
Slice – Home of Millie Hipwood / Hopgood / Hopwood, Mr Vermissage, and other minor characters.
Stab In The Back – Pub frequented by Opera House musicians.
Sto Plains – Area in which the cities of Sto Lat, Sto Helit, and Ankh-Morpork are located.
Treacle Mine Road – Ankh-Morpork. Just off Elm Street.
Unseen University – The home of the Disc’s wizards, a very magical place where magic is almost never used, and for good reason. Known as UU, for short. Sometimes misspelled, Unesene.
Watch House (Pseudopolis Yard) – Location of Captain Vimes’ crew.