The London Underground network at Paddington is complicated with the

convergence of a number of lines. Being close to the surface for much of its route the Circle and District lines were constructed using the cut and cover method (as opposed to deep boring) with some stretches operating in the open air. Paddington's station (originally named Praed Street) is partially open and this enables photographs of tube trains to be taken. A relatively new S7 number 21392 arrives into the station with a Circle Line working via Victoria.