The last of my posts from what turned out to be a long walk on the last day of the Christmas holiday concerns the two great gasholders on the bend of the Regent’s Canal, just near Broadway Market.   I received an email telling me – surprise, surprise – that they are likely to be demolished.   The smaller one is the earlier, dating from 1866, designed by Joseph Clark, the chief engineer of the gasworks.   The bigger one was added in 1889.   They supplied gas to the Shoreditch gasworks, which in turn supplied gas for the street lighting of east London:-