: While not technically a "Tube" line (it is a high-frequency railway), it is the most recent addition to the London Underground map .
Contemporary innovation is producing a new generation of compact tunnels and urban conveyances:
According to various reports, the youngest person to use the London Underground was a baby who rode the Tube on the day of their birth. In 2017, a newborn baby was taken on a ride through the London Underground on their first day of life, accompanied by their parents. The baby, weighing 3.5 kg (7.7 lbs), traveled from King's Cross St. Pancras to Leicester Square station.
: While not technically a "Tube" line (it is a high-frequency railway), it is the most recent addition to the London Underground map .
Contemporary innovation is producing a new generation of compact tunnels and urban conveyances: youngest tube
According to various reports, the youngest person to use the London Underground was a baby who rode the Tube on the day of their birth. In 2017, a newborn baby was taken on a ride through the London Underground on their first day of life, accompanied by their parents. The baby, weighing 3.5 kg (7.7 lbs), traveled from King's Cross St. Pancras to Leicester Square station. : While not technically a "Tube" line (it