Brunel's Thames tunnel (and accidental brothel) becomes new arts space

The entrance hall to Brunel's 19th-century tunnel under the Thames has been turned into a unique auditorium, complete with the rumble of Tube trains

The engineers Marc and his son Isambard Kingdom Brunel would have approved, the director of the Brunel Museum Robert Hulse reflected, as he removed the legs from a Bechstein grand piano and helped wrestle it down a twisting staircase into the massive iron shaft they sank into the banks of the Thames 190 years ago.