As well as many shops, Diagon Alley also contains small stalls. These stalls sell a wide range of things; including magical sweets.
They set up stalls selling amulets and other objects, which (according to them) protect you against werewolves, Dementors and Inferi. These "dark magic protection" stalls, however, are illegal, and likely scams. Arthur Weasley is the one in charge of arresting their owners.

Moderator: MAMA NIAAMH

Eeylops Owl Emporium sells owls and supplies such as owl treats and cages. Inside, it is dark and full of a low, soft hooting, rustling and the flickering of "jewel-bright eyes." Among the types of owls sold are Tawny, Screech, Barn, Brown, and Snowy.

Moderator: MAMA NIAAMH

Florean Fortescue's Ice Cream Parlour, under the management of Florean Fortescue (founder and shopkeeper), sold ice cream, including sundaes, which could be enjoyed at outdoor tables.

Moderator: MAMA NIAAMH

Flourish & Blotts sells a great variety of magic books, including textbooks for Hogwarts courses and other books of general magical interest. In the back there is a corner devoted solely to divination, which includes a small table stacked with titles like Predicting the Unpredictable: Insulate Yourself against Shocks and Broken Balls: When Fortunes Turn Foul. Another small display contains the book Death Omens: What to Do When You Know the Worst is Coming.

Moderator: MAMA NIAAMH

Gringotts Wizarding Bank is the only known bank of the wizarding world and it is operated primarily by goblins. A snowy white building, near the intersection of Knockturn Alley and Diagon Alley, Gringotts towers over all neighbouring shops. Customers pass through a set of bronze doors and then silver ones before entering the lobby. The main floor is paved with marble and has long counters stretching along its length. Within, wizards and witches keep their money and other valuables in vaults that are protected by very complex and very strong security measures. The vaults extend for miles under London and are accessible through rough stone passageways and then by means of magic carts that travel speedily along their tracks. Gringotts also offers Muggle-Wizarding currency exchange.
There are a number of methods to opening the vaults. Most vaults, use small golden keys. Higher security vaults may have various enchantments or other measures upon the doors. For example, the door to Vault 713 needs to be stroked by a certified Gringotts goblin, which causes the locks to retract to the centre of the door. If anyone other than a certified Gringotts goblin touches the door, that person will be sucked into the vault, which is only checked for trapped thieves about once every 10 years. Dragons guard the especially high security vaults found in the lowest reaches of the bank.

Moderator: MAMA NIAAMH

The Leaky Cauldron is a pub and inn for wizards, located on the Muggle street of Charing Cross Road in London, offering food, drinks and rooms to rent. It was founded by Daisy Dodderidge (1467–1555) in 1500 "to serve as a gateway between the non-wizarding world and Diagon Alley." The current barman and innkeeper is a wizard named Tom.

On the main floor, the inn has a bar, several private parlour rooms, and a large dining room for guests to dine. On the upper floors, there are a number of rooms available; one of the rooms, is room 11, which has a talking mirror and windows that allow him to look out onto Charing Cross Road. People often stay at The Leaky Cauldron when they come up to London on shopping trips, since there is no mention of other wizarding hotels or inns in Diagon Alley.

The pub serves as a way of entering onto Diagon Alley from the Muggle world for Muggle-borns and their parents (both of whom, until the first letter from Hogwarts, have no magical knowledge or means of entering). The rear of The Leaky Cauldron opens onto a chilly little courtyard where a brick is tapped, found by counting three up and two across three times.

Moderator: MAMA NIAAMH

Madam Malkin's is a clothing shop next to Flourish & Blotts. It sells robes and other clothing, including the standard Hogwarts-required plain black work robes, and dress robes. Madam Malkin, a squat witch who wears mauve robes, and her assistants will tailor the robes to fit right in her shop. Malkin is an archaic term for a crotchety old woman.

Moderator: MAMA NIAAMH

The Magical Menagerie is a magical creature shop that in addition to selling magical creatures also offers advice on animal care and health. The shop is very cramped, noisy and smelly, due to every inch being covered with cages. Among the creatures in the Magical Menagerie are enormous purple toads, a firecrab, poisonous orange snails, a fat white rabbit that can turn into a silk top hat and back, cats of every colour, ravens, Puffskeins, and a cage of sleek black rats that play skipping games with their tails.

Moderator: MAMA NIAAMH