The theory also assumes, without any proof, that the day of Creation was the same length as it is now.If we go by what the Bible says, then the time from creation to today is approximately 6 thousand years.
The original London Bridge was taken apart and rebuilt in Lake  Havasu, Arizona as a tourist attraction. The current London Bridge  is in Central London.
From London Bridge station you can walk along Tooley Street to Tower Bridge Road and see the runners just before they cross Tower Bridge at mile 12. Or, walk over London Bridge into the City of London, the race passes underneath London Bridge.