Diagon Alley
Flourish & Blotts Bookstore
Manager is a bit brusque, but then he does have to deal with strange and bothersome things like books that bite (The Monster Book of Monsters), books that are completely invisible (The Invisible Book of Invisibility), and book signings by Gilderoy Lockhart, who draws quite a crowd which can get a bit unruly at times.

Gringott's Wizarding Bank
Large white marble building, staffed by Goblins, so don't even think of trying to rob it if you know what's good for you. Knockturn Alley connects to Diagon Alley near the bank. The main floor of offices is on street level, but the vaults are miles below, accessible by a magic cart. It is rumored that the goblins keep dragons down there to guard the high security vaults.

The Leaky Cauldron
A small, shabby-looking inn on Charing Cross Road, London, sandwiched between a big bookshop and a record store. The landlord, bald and toothless, is named Tom. There are a number of rooms available. During the last few weeks of August, 1993, Harry stayed in room 11, which has windows to let in the sunshine and a mirror on the wall which talks; Harry could hear the traffic from Charing Cross Road behind and the crowd in Diagon Alley below. The night of August 31, Ron and Percy shared room 12 next door. There is a bar, several private parlor rooms and a fairly good-sized dining room.

Quality Quidditch Supplies
Harry Potter's favorite shop in Diagon Alley is Quality Quidditch Supplies. He visited it often when he stayed for two weeks at the Leaky Cauldron, since that summer the new Firebolt racing broom had been introduced and the shop had one on display. Quality Quidditch Supplies displayed a full set of Chudley Cannons robes in the front window Gambol & Japes Wizarding Joke Shop
This shop, a favorite of Fred and George, sells a wide variety of tricks and practical joke items. The twins buy Dr. Filibuster's Fabulous Wet-Start, No-Heat Fireworks here.

Florean Fortescue's Ice Cream Parlor
Florean Fortescue served Harry free ice cream sundaes and offered advice about medieval witchcraft for a report Harry was writing.

Madam Malkin's Robes for All Occasions
Madam Malkin is a squat, smiling witch wearing mauve robes. Madam Malkin's is next door to Flourish & Blott's. Hogwarts school robes are to be found here.

The Apothecary
The Apothecary sells potion ingredients. It's a fascinating shop crammed with all sorts of interesting things. There are barrels of slimy stuff lined up on the floor and jars of all sorts of powders, herbs, and the like along the walls. Bundles of feathers, fangs, and claws hang from the ceiling. The whole place smells very bad, a mixture of bad eggs and rotten cabbage. The name of this shop is Slug & Jiggers Apothecary.

Eeylops Owl Emporium
A dark shop which, according to the sign, sells Tawny, Screech, Barn, Brown, and Snowy owls. Hagrid bought Hedwig here for Harry on July 31, 1991.

Ollivander's - Makers of Fine Wands since 382 BC
A narrow and shabby little shop. The window displays a faded purple cushion upon which sits a single wand. The walls are lined floor to ceiling with thousands of narrow boxes. The furniture consists of a single spindly chair.

Magical Menagerie
Hermione bought Crookshanks here. The walls are covered with cages and the place is noisy with the sounds of all the animals. The proprietor is a witch who wears heavy black spectacles. She offers advice and sells things like rat tonic.

Junk Shop
Full of broken wands, lopsided scales, etc. and a thin little book called Prefects Who Gained Power, which caught Percy's eye.

Stationery Store
Next door to Quality Quidditch Supplies, that sells ink, quills, and parchment. The name of one such shop in Diagon Alley is Scribbulus Everchanging Inks.

Second Hand Robe Shop
Mrs. Weasley took Ginny there to buy her robes for Hogwarts.

WhizzHard Books
Publishing firm (Quidditch Through the Ages)
Located at 129B Diagon Alley

Obscurus Books
Publishing firm (Fantastic Beasts and Where to Find Them)
Located at 18a Diagon Alley

Daily Prophet
There is an office of the Daily Prophet in Diagon Alley, or at least a sign proclaiming the name. This is not canon since it only appears in the film.

Cauldron shop
This shop, the closest one to the entrance from the alley behind the Leaky Cauldron, sells all sorts of cauldrons. Outside the shop, a stack of them shines in the sun, under a sign that reads:

Cauldrons
All sizes
Copper, Brass, Pewter, Silver Self-Stirring
Collapsible



Thanks for Harry Potter Lexicon for the information.

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