I was making some researches about data and found it interesting.  It's
   about USA only and not exactly a 'wow, hurray! site', but it can be
   useful for some people here.
   [1]https://www.media.mit.edu/projects/datausa/overview
   [2]https://datausa.io
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   "Don't let anyone rob you of your imagination, your creativity, or your
   curiosity.  It's your place in the world; it's your life.  Go on and do
   all you can with it, and make it the life you want to live."  -  Mae
   Jemison

References

   1. https://www.media.mit.edu/projects/datausa/overview
   2. https://datausa.io/