A woman crosses a road outside the EU Parliament ahead of the EU elections in Brussels, Belgium, May 22, 2019. (Photo by Yves Herman/Reuters)

A father crosses a road with his twin daughters in Shanghai, China September 28, 2018. (Photo by Aly Song/Reuters)

Guillaume Rolland of France stands on the line during the Highline Extreme event in Moleson, Switzerland September 25, 2015. European best slackliners will compete until Sunday on six different lines ranging from 45 metres (148 ft) to 495 metres (1,624 ft). The 495 metres (1,624 ft) line if completed, will be the world record. (Photo by Denis Balibouse/Reuters)

Xochimilco – Island of the Dolls – Dead Line. Photo by Ramalama_22

A line of soldiers firing handguns during a training session, circa 1920. (Photo by Keystone). P.S. All pictures are presented in high resolution.

“Can't wait”. Location: Inao Station (JR Oito-Line), Nagano Prefecture, Japan. (Photo by AZURE)

A woman plays with a kitten inside of a line house in downtown Shanghai April 12, 2015. (Photo by Carlos Barria/Reuters)

Employees work on an electric train assembly line at the “Stadler Minsk” plant in Fanipol, Belarus February 10, 2016. (Photo by Vasily Fedosenko/Reuters)