Wordsworth wrote "Composed Upon Westminster Bridge" in 1803 on the morning the bridge first opened to the public. The poem uses vivid imagery to describe the quiet, natural beauty of London in the early morning before the city wakes. Wordsworth portrays the city's buildings and structures as open and in harmony with the surrounding fields and sky. He expresses admiration for the simple, almost rural scene, finding a peaceful calm in the sleeping city that he prefers to its usual bustle.