Maybe the fans turned out in swarms because the marathon was one of the final events of the London Olympics. Or maybe because a lot of the tickets were free.

Either way, the marathon was well-supported Sunday morning as the runners raced through fan-packed streets.

The runners were seeing the sights that many tourists might when they ride the famed double-decker buses of London. The race went past Big Ben, St. Paul's Cathedral, Trafalgar Square, London Bridge and the Tower of London, before finishing near Buckingham Palace.

- Pat Graham - Twitter http://www.twitter.com/pgraham34

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EDITOR'S NOTE - "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.