US map quizzes and GeoGuessr trainers
The United States gives you two unusually strong signals and expects you to read one of them: the number on a storefront and the plate on the car in front. These trainers drill both. The plates are the faster tell in a round, the area codes are the more precise one, and neither needs you to recognize a single tree.
3 games, free and without an account, playable in the browser.
US Dialing Codes
How well do you know the United States dialing codes?
US License Plates
Can you identify which states use which license plate designs?
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Every game here is also in the game library, and under Americas on the category hubs.