Tim explores London's first passenger railway – the London and Greenwich Railway, on the longest railway viaduct in Britain today.

He also marvels at the mechanics of the Deptford Creek Lifting Bridge and the brewing businesses that operate under the arches of the viaduct today.

The programme explores Alnwick Station, a disused station in the North East of England, reinvented as one of the UK's largest second-hand book shops. And in Central Europe, the Zampach Viaduct in the Czech Republic was built as part of a much-needed rail link to transport timber to the capital, Prague.

Today Tim Dunn heads to the seaside to find out how the railways changed the fortunes of Margate and Ramsgate.