The Railway Archive is a superb site with lots more photographs of the Great Central Railway, including pictures from the world-famous Newton collection of its construction, taken by S.W. Newton. Go to http://www.railwayarchive.org.uk/ and enter the keyword Leicester in the search box.
The Great Central Railway plc runs steam and heritage diesel hauled trains between Loughborough Central and Leicester North. The section between Loughborough and Rothley is the only preserved double track main line in the world. For details see www.gcrailway.co.uk.