See the World

See the world. All of it. As cheaply as possible. Click a square to move the purple marker. Each time you move, the surrounding 8 squares will be revealed. Do this until all the tiles have been revealed, then move home to complete the trip. Each click can be on any square you wish, but there are varying costs: The 4 adjacent squares (up, down, left, right) are cheapestFrom an airport to an airport is reasonableTo a revealed non-adjacent square is expensiveTo an unrevealed square is very expensiv...