Darwin's rooms in Christ's College, Cambridge. Photograph from Christ's College Magazine, 1909. This is not what they looked like during Darwin's day.

The rooms were restored in 2009, see here.

A full account of the restoration can be found in John van Wyhe, Charles Darwin in Cambridge: The most joyful years. WSP, 2014. (Hardcover, paperback, Kindle)

See: The Complete Photographs of Darwin