I noticed that Houston City Hall had a pin so I checked it out. The pin is for First Wings Learning Center up on JFK Blvd.
May I suggest changing the color of the pins? One color for valid and another for invalid. Perhaps a color for 51% signs too?
Perhaps a pin for locations that can not be entered but do not require signage such as Post office, courts, etc. OTOH, that may make the map too busy.
Thank you for all you do.
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