As long as magic has existed, there have been teachers and students, and over time magical schools and universities have been created. Here are seven examples of these citadels of magic.

yes,  just as the title says 

yup

who needs health or mana potions?

From the dark mists that swirled around us came the Oskarian Kniveships, slicing through the water towards our cog. At first, I feared my life had come to an end. Until I realized they would serve as escort to the Kh'nera, home of the Titanborn.

As it says on the tin

Once a mage of renown, now William Brevin is reduced to having to kill people just to keep his own body from turning into a foul rotting thing.

"Living in a town that sits on a dimensional nexus can wear thin after a while. It's not so much the crawling shadows, bizarre weather, or late night visitors from places that never existed; but carrying on with your normal life and trying to act like nothing out of the ordinary is going on in your little corner of the world that gets to you."

A small rural town with surreal secrets, that happens to be situated on a dimensional crossroads, suitable for modern day supernatural/mystical/horror campaigns.

Thirty things that could be happening in a military base.

7 kinds of coffee for the DungeonVerse (we only have 2 real kinds)

Seven teachers, of varying ability and usefulness, some of which may teach the PCs a lesson, others that the PCs may need to teach a lesson to.

Inspired by an AI ad showing a coffee table that had a glass top, and inside was a miniature library complete with lights, tiny cats and all the rest.

Riffing

a warning

Seven Animal themed Monarchs.

7 Dungeoneers, from the utterly inept to the most hardened of adventurers.

spell list for a dungeon butler

Yeah

Thirty town or city mayors ranging from the marvellous to the malevolent for the PCs to either meet, help, fight against or just see from afar.

Incomplete, used in home game and ties in well with Romantic City