Between 1899 and 1901, Monet painted nearly 100 views of London, mesmerised not by its architecture or people, but by its atmosphere – more precisely, by its pollution. His canvases depict the city ...

Millions of people pass under the River Thames each day, by rail, road or foot. We take it for granted. Just two centuries ago, the idea of going under the river would have seemed fanciful. Today, ...