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.
By plane. The closest airport to Horsham is London Gatwick (LGW) which is only 20 minutes by car or train (the station is right in the airport). London Heathrow (LHR) is about an hour by car (depending on traffic) or two and a half hours by train via London - change at Hammersmith and London Victoria.