In London, the Crystal Palace is destroyed by fire.

The Crystal Palace was a cast iron and plate glass structure, originally built in Hyde Park, London, to house the Great Exhibition of 1851. The exhibition took place from 1 May to 15 October 1851, and more than 14,000 exhibitors from around the world gathered in its 990,000-square-foot (92,000 m²) exhibition space to display examples of technology developed in the Industrial Revolution. Designed by Joseph Paxton, the Great Exhibition building was 1,851 feet (564 m) long, with an interior height of 128 feet (39 m), and was three times the size of St Paul's Cathedral.

November 30 is the 334th day of the year in the Gregorian calendar; 31 days remain until the end of the year.