United Arab Emirates: Mid view of an Emirates passenger plane flying through the sky.

Portugal: Various shots of the Lisbon Funicular inclined railway travelling down a hill carrying passengers.

Passengers getting off a steam train at a railway station.

Passengers wave out of the windows of a passing train.

Portugal: A yellow tram passing by.

Portugal: A yellow tram passing by the Hieronymites Monastery (Mosteiro dos Jer�ƒ³nimos). There is blue sky overhead.

Germany: Commuters squeeze into an overcrowded yellow underground train. Camera pulls out as the doors close and the train drives away.

Low angle view of London Underground Tube train approaching station platform as people in winter clothing wait for train, legs and feet of commuters seen getting off then train pulls away

Platform-level view of London Underground Tube train moving off from station platform, people wearing winter clothing walk past camera as train pulls away to reveal large posters on wall

Low-angled view from edge of platform of London Underground tube train arriving at station platform and coming to a stop, people wearing winter clothing waiting on platform get on and others get off

Speeded up time-lapse footage looking down on London Underground train approaching platform at Earls Court Station, train stops and doors open then people get on and get off, train then leaves

Platform-level view of stationary London Underground Tube train as red doors open and people wearing winter clothing alight onto station platform, other people get on train or walk past then doors close

A steam train rolls along the track.

Speeded up time-lapse footage looking down on London Underground tube train approaching platform at Earls Court Station, train stops and doors open then people get on and off train, train leaves whilst train on opposite platform arrives