Tunneling work has been completed for the UK's Crossrail rail link. Described as Europe's biggest construction project, it will create a new 118-km (73-mile) rail route. The route includes 42 km (26 miles) of newly dug tunnels that go straight through the center of London.
Isambard Kingdom Brunel is one of Britain's greatest-ever engineers. His first project was the Rotherhithe Shaft, the starting point for London's Thames Tunnel. The tunnel was the first in the world known to be built underneath a river and the shaft is now set to become a theater.