London to start 24-hour subway service this summer

LONDON — Could London soon challenge New York's status as the city that never sleeps? The British capital will launch a 24-hour subway service starting in August, London’s new mayor, Sadiq Khan, announced Monday. London has the oldest subway system in the world, a vast spaghetti network of lines that ferry more than 4 million people across the […]

Source: http://www.washingtonpost.com/blogs/worldviews/wp/2016/05/23/london-to-start-24-hour-subway-service-this-summer/