UK’s largest tunnel cutting head lowered into its London shaft

The largest tunnel boring machine cutting head has been lowered into the space prepared for it to start digging the Silvertown road tunnel in East London.

Thames Tideway tunnels open day

The "super sewer" tunnel boring machines that will be digging under the Thames will be on show at a public open day in a couple of weeks time.

See Tunnel Engineering on Display in Westminster

A short walk from Big Ben is a large exhibition about the tunnels under London, and -- much more importantly -- a working tunnel boring machine, made from Lego.

Did Leonardo da Vinci invent the Tunnel Boring Machine?

The quick answer is no -- not as we know them today -- but the longer answer is sort of, maybe.