If you live in London you have probably seen the holes in the ground, as the Jubilee Underground line is extended from Westminster, along the South Bank, to the site of the Millennium Dome and then into Docklands.
Cutting through this swathe of central London created an unexpected bonus for archaeologists and this Web site provides pictures and descriptions of the artefacts discovered. At London Bridge, archaeologists found evidence of an extensive Roman settlement on the south side of the Thames, with mosaics, coins, pottery and items such as an ornamented oil lamp, as well as the remains of medieval taverns along the road from which Chaucer's pilgrims began their Canterbury Tales.
As well as being one of the decade's biggest engineering projects, the Jubilee Line extension is among the first to chronicle its achievements (and delays) on its own Web site. In terms of providing "real" material for schools, this site has a surprisingly wide range of potential uses, including geography, science, new technology and history. It includes a gallery of computer-generated simulations showing how the stations will appear when they are built.