The tunnels have been dug, the dirt hauled away, the skeletons unearthed and catalogued, and the tracks laid. With Crossrail poised to begin service, workers are turning their attention to preparing for the 200 million people who will ride the new rail line in and out of London each year. Not one of those people will want to trudge up and down stairs to catch a train, so Crossrail crews are installing 54 escalators in six stations--a process that's surprisingly mesmerizing when compressed into a two-minute timelapse video. Crossrail, a decade in the making, will make it far easier for people in London's growing suburbs get into a city that's grown far too expensive for most mortals. The $19.7 billion project includes 10 new stations (and another 30 that have been improved) and 26 miles of new tunnels measuring 20 feet wide.