Sheffield tram (Supertram) on overhead track approaching Commercial Street from Park Square, Sheaf Valley Quarter, Sheffield, Yorkshire, England

Sheffield Railway station seen from the east with Supertram stop in foreground and city centre behind, Granville Street, Sheffield, Yorkshire, England

View of traffic and highrise buildings in the Akasaka District of Minato, Minato City, Tokyo, Honshu, Japan

View of city tram on major street during daytime, Hondori, Naka Ward, Hiroshima, Honshu, Japan

Green tram and Nam Tin building, North Point, Hong Kong, China

Chong Nonsi bridge, Bangkok, Thailand

View of trains from the Lotus Tower, Colombo, Sri Lanka

Colourful bus in a street, Dakar, Senegal, West Africa

Elevated view of traffic and tram on major street during daytime, Hondori, Naka Ward, Hiroshima, Honshu, Japan

View of bullet train passing over bridge with city traffic, Minato City, Tokyo, Honshu, Japan

View of intricate rail and road network crossing, Minato City, Tokyo, Honshu, Japan

View of interior at Abholer-Parkplatz Spandau Bahnhof, Spandau, Berlin, Germany

View of interior at Abholer-Parkplatz Spandau Bahnhof, Spandau, Berlin, Germany

Metro, Porto, Norte, Portugal, Europe

View of bullet train in Kanazawa Station, Kanazawa City, Ishikawa Prefecture, Honshu, Japan

Tokyo Station: subway, regional and long-distance trains and the Shinkansen high-speed trains, Tokyo, Japan, Asia