Dear Savantji,
Here is one more book for you for this weekend reading.
'Fall of Giants' the first part of 'The Century Trilogy' by Ken Follett which is based on backdrop of the First World War and the Russian Revolution.
The second part due to be published in 2012 which is based on backdrop of the Great Depression and the Second World War.
The last part will be published in 2014 which is based on backdrop of the Cold War.
If you like the 'Pillars of the Earth' and 'The World Without End' then I am quite sure you will enjoy this epic also.
Regards,
-Pralhad