I found a bunch of fire hydrant pictures on Flickr from a guy who favourited one that I took. Turns out he's the owner of the Canadian Fire Hydrant Museum.
From the website:
The Canadian Fire Hydrant & Waterworks Museum is located in Southern Ontario, Canada.
We also have a collection of electro-mechanical sirens, hand water pumps and watermain valve box covers.
There are also a few American hydrants in our collection.
We wish to thank all of the Public Works Departments who have donated hydrants to our Museum.
Aside from a bunch of galleries, there isn't much more info on the museum or where exactly it's located.