Third set of Continent, Country, City Clues arrived...our guess so far.
Mystery Class #1 - Guandong, China, Asia
Mystery Class #2 - New South Wales, Australia
Mystery Class #3 - Democratic Republic of the Congo, Africa
Mystery Class #4 - Liege, Belgium, Europe
Mystery Class #5 - Cebu, Philippines, Asia
Mystery Class #6 - Antartica
Mystery Class #7 - Norfork, Virginia, USA, North America
Mystery Class #8 - Brazil, South America
Mystery Class #9 - South Island, New Zealand
Mystery Class #10 - Ulin Bator, Mongolia, Asia