He also worked with Sir Charles Barry on numerous projects, most notably the Houses of Parliament, and is also known for his numerous topographical works, such as Constantinople and the Scenery of the Seven Churches of Asia Minor, published in 1838, and China Illustrated, published in 1845.
Ia juga bekerja sama dengan Sir Charles Barry dalam berbagai proyek, yang paling terkenal yaitu Istana Westminster, dan dikenal juga karena berbagai karya topografisnya, misalnya Constantinople and the Scenery of the Seven Churches of Asia Minor yang dipublikasikan pada tahun 1838 dan China Illustrated yang dipublikasikan pada tahun 1845.