Guess cities and airports
PassportQ and AirportQ are the clearest starting points: one focuses on city deduction, the other on airport route maps.
Guess how places connect
SkyQ, RailQ, Layover, and Getaway turn routes, constraints, and travel networks into daily puzzles.
Travel facts become clues
Temperature, local time, airlines, population, distance, and direction all become useful signals instead of trivia detached from a map.