During peacetime, hospitals can be indicated by a variety of symbols. For example, a white 'H' on a blue background is often used in the United States. During times of armed conflict, a hospital may be marked with the emblem of the red cross, red crescent or red crystal in accordance with the Geneva Conventions.
You can typically stop paying for mortgage insurance once your loan is paid down to 78 percent of the original value. In theory it should automatically cancel, but there are situations where it could take somewhat longer or even considerably shorter than that.
If you pay down your mortgage to 80% of the home's original value, you can ask the lender to cancel your mortgage insurance. There is no guarantee the lender will say yes. This is different from simply having 20% equity in your home, based on the current market value.