The marathon distance is 26.2 miles, or 42.2km. They are often seen as one of the main goals in a runner's lifetime. Completing one is a real feat of mental and physical resilience, and requires a serious amount of commitment and training if you are seeking a bragworthy time. Most marathons in the UK take part in the major cities, taking you through streets lined with cheering crowds and a vibrant atmosphere and passing historic landmarks. The London Marathon is the most famous of these, and is one of the six world marathon majors. Other marathons might take you out of the city and into the UK's stunning rural scenery. Some routes take in the national parks or the rugged coasts, so these races are a great way to see some incredible views while also achieving something incredible. Marathons are also amazing fundraising opportunities if you're feeling charitable. The London Marathon has raised over £1 billion since it started in 1981.