One of his best-known works was a depiction of the Siege of Paris during the Franco-Prussian War,[2][3] painted in the form of a cyclorama, a type of large panoramic painting on the inside of a cylindrical platform designed to provide a viewer standing in the middle of the cylinder with a 360° view of the painting. Viewers surrounded by the panoramic image are meant to feel as if they are standing in the midst of a historic event or famous place.