As a team of archaeologists digs through layers of history beneath London, the thought of the next find is never far away.
"Just about any new discovery is thoroughly exciting," says Jay Carver, the lead on what is currently the UK’s largest archaeology project.
His team has been working alongside engineers building stations and digging two giant tunnels under central London as part of Crossrail since 2009.
On the journey so far, finds include rare amber, hundreds of skeletons and a Bronze Age track.
But for Mr Carver, among the most exciting discoveries was the Thames ironworks and ship building company which occupied the entire Limmo Peninsula. Read more.