LONDON -- The team behind the city's epic Crossrail project has just finished excavating 26 miles of tunnels underneath the city, and sent a drone down there to capture what it looks like.
More than half of the £15 billion ($22 billion) project is complete, so the crew attached a camera to a carriage navigating the deserted tunnels before flying the UAV into some of the eerie passageways.
Crossrail, a hugely ambitious underground railway project involving 10,000 people working beneath the streets of London, won't be open to the public until 2018. For now, though, you can fly through some of the sci-fi spaces via the clip above.