Guess location of Vietnam cities with population over 20000 people.

Choose the game mode:
QUIZ: The goal is to guess where a city or town is on a map. You have several options to select and only one is right. Each level has a different number of possible answers. Fast (and correct) answers will be promoted by extra points.
CHALLENGE: The goal is to select a city on a map. Just tap on the place you think the city is located. The closer to the correct answer, the more points you can get. Fast (and correct) answers will be promoted by extra points.