For marathoners there's no better way to see a different country than on foot, packing more than 42km of scenery into the experience and having a finishing medal as proof.
Boston Marathon
Held on Patriots Day and recognised as the United States' oldest and most prestigious race, keen marathoners strive to compete at least once in the Boston Marathon. Entry must be earned on a fast qualifying time run. The 36,000 runners start outside Boston and pass through several New England towns to finish in the city centre.
New York Marathon
Another race marathoners strive and stride to compete in is New York's popular event, the world's largest marathon with more than 50,000 finishers each year. Entry is chosen largely by lottery.