My earlier post did not include names plus I have added one more for 6 out of 9 colonial churches in León. I think the names are important!
Recolección Church León, Nicaragua
Cathedra Basilica of the Assumption of León León, Nicaragua
San Juan Church León, Nicaragua
El Calvario Church León, Nicaragua
San Francisco Church León, Nicaragua
La Merced Church León, Nicaragua
I walked to the ones I could find within walking distance of the town center where I stayed. The other 3 colonial churches might have been within walking distance, but I could not find them. The San Juan Church our van stopped by on the way out is how I got it. León is a much larger city than Granada with many more people and churches. It is a nitty gritty working city much more alive than Granada and much less tourist-looking. Next time I hope for more time to explore it further.