architecture without lines

Claude Monet on his Rouen Cathedral series…

When the British painter Wynford Dewhurst asked for an account of the Rouen pictures, Monet replied, ‘I painted them, in great discomfort, looking out of a shop window opposite the cathedral. So there is nothing interesting to tell you except the immense difficulty of the task, which took me three years to accomplish.’
[…]
‘I have wanted to do architecture without doing its features, without the lines.’

Quoted in Jackie Wullschläger’s Monet: The Restless Vision (Knopf, 2024)