How to get there:
Diagon Alley is found in London at the other side of The Leaky Cauldron, a
pub that can only be seen by wizards/witches. The Leaky Caldron is situated between a record shop and a bookshop. Wizards, when in the Leaky Cauldron enter the walled courtyard and tap the 3rd brick from the left above the dustbin.
Book Publishers
 

WhizzHard Books -
This publisher has published ONE book thus far for Muggles. We muggles and wizards know it to be "Quidditch Through the Ages". They are located at 129b Diagon Alley, London.
 

Obscurus Books -
This publisher has published the world renowned book, "Fantastic Beasts and Where to Find Them". This publisher can be found at 18a Diagon Alley, London.
 

The Leaky Cauldron
"This is it," said Hagrid, coming to a halt, "the Leaky Cauldron. It's a famous place."

The Pub that is the entrance to Diagon Alley. You can eat or have drink, or stay over night in a comfortable room. If you're ever lonely...talk to the mirror. ;)


Gringotts
The wizard bank run by goblins.

At the front entrance you are greeted with this message:

Enter, stranger, but take heed
Of what awaits the sin of greed
For those who take, but do not earn,
Must pay more dearly in their turn,
So if you seek beneath our floors
A treasure that was never yours,
Thief, you have been warned, beware
Of finding more than treasure there.
 

Flourish and Blotts
Basically, a huge book store. All kinds of wizarding books can be found here. Some bound in leather others that are invisible...
 

Madam Malkins Robes For All Occasions
This is the one and only place to buy Hogwart's school cloths.
 

Quality Quidditch Supplies
Quidditch fans you are in luck, Quality Quidditch Supplies caries all the items for your Quidditch needs. How about a broomstick or a poster of your favorite Quidditch team.


Ollivanders
Ollivanders fine wants have been in production since 382 BC. Wands are very important, this is why you are measured and tested for the perfect wand by Mr. Ollivander himself.


Cauldron Shop
The sun shone brightly on a stack of cauldrons outside the nearest shop. Cauldrons -- All Sizes - Copper, Brass, Pewter, Silver -- Self-Stirring -- Collapsible, said a sign hanging over them.

Hogwarts students can buy their cauldrons here. Choose from brass, pewter, gold, silver, copper cauldrons of all sizes. Some are self-stirring and some are collapsible. Harry, when buying his first cauldron, was very much wanting a gold one but Hagrid would not concede. "It's pewter there isn't it?" meaning, it was specifically mentioned that students had to have only Pewter cauldrons "pewter, standard size 2"


Apothecary
The apothecary sells items need to create potions, many potions are complex and the ingredients can be bought here. Hogwart's students have to visit the Apothecary to refill their supply of potion ingredients, every year.


The Junk Shop
What can I say? They sell junk. It's either old, used or broken...not much more to explain. I suppose, Mrs. Weasley bought Ron's dress robes for the Yule Ball from here. Thats why they were so old fashioned. Poor Ron! How he hated those!


Florean Fortescue’s Ice-cream Parlor
Florean Fortescue sells the best ice creams in the wizarding world. Stop by to see some truly amazing combinations of ice cream. Florean Fortescue has some good knowledge regarding medieval witch burnings. In the third book - Harry Potter and the Prisoner of Azkaban when Harry is spending his remaining vacations at The Leaky Cauldron, he spends his time at Florean Fortescue's and Florean Fortescue himself helps Harry to complete his homework on Medieval Witch Burnings and provides Harry with sundae's every half hour - free of cost!


Eyelops Owl Emporium
Eyelops sells owls. Just...Owls. Types you can choose from are tawny, screech, barn, brown and snowy. It is from here that Hagrid buys Harry his owl - Hedwig, as a birthday present.


Magical Menagerie
Here at the Menagerie you can buy all types of animals, rats, cats and more! Hermione gets Crookshanks from here and Ron takes some rat tonic for Scabbers.