London is home to many of the biggest and best sporting events in the world - but there are a number ofsporting attractions that really jump off the page every year.
One of these, undoubtedly, is the London Marathon, which is televised throughout the world and helps to raise millions of pounds for a host of worthy causes.
This year's edition - the 34th in history - promises to be as good, if not better, than any that have preceded it.
And the stellar line-up that has been announced for the professional races means that it is sure to be one to remember.
In the women's race, for instance, Kenya's Priscah Jeptoo will compete against Olympic champion Tiki Gelana, as well as world-champion Edna Kiplagat.
Jeptoo, the winner of last year's New York Marathon, is among the favourites for the race. She will, however, have to overcome some stern competition in order to claim the prestigious title.
She may, perhaps, even need to challenge Paula Radcliffe's world record time of 2:15:25, which was set in 2003.
Previewing the eagerly-awaited event, London marathon race director Hugh Brasher said: "Our champion was a deserved winner of the World Marathon Majors title last year.
"She has shown with her performances over the last two years that she will be extremely difficult to beat."
There is, of course, another side to the London Marathon that simply cannot be overlooked - fun running and charitable donations.
Indeed, every year, loads of amateur runners take to the streets of the capital to raise some much-needed funds for an array of worthy causes.
But even if you haven't managed to secure entrance to this year's race, you needn't fret as you can support the event by taking to the streets and cheering on the professionals and the fun runners.