This weekend Silverstone plays host to the Formula 1 British Grand Prix.  It's also (for the purposes of this post) 70 years old this year.  1948 saw the first post-war British Grand Prix and it was run at Silverstone in October 1948.  The previous year saw an informal race run there, but the official races there began in 1948.

Silverstone has seen much development to it's layout in its 70 years - and I've gone and recreated each one here for your enjoyment!!
1948

1949

1952

1975

 

1987

1991

1994

 

1996

 

1997

 

2010

 

 

2011