(FILES) Olympic Rings marking the London 2012 Olympics Games are painted on the entrance to the Channel Tunnel as a Eurostar high-speed train travels through, before arriving at the Eurotunnel terminal in Coquelles, near Calais, northern France, on march 27, 2012. The TGV celebrates its 45th anniversary in 2026 and will have carried nearly 3 billion passengers, according to SNCF. The fifth-generation TGV M, a modular high-speed train, is due to enter service under the Inoui brand on November 6, 2026 on the ParisLyonMarseille route. (Photo by Denis CHARLET / AFP via Getty Images)