The document compares cities in Mexico and Paris by describing some of their prominent landmarks: 1) The Champs-Elysees in Paris is an avenue approximately 1,800 meters long, while Mexico City's Paseo de la Reforma is much longer at around 5 km and has 6 roundabouts. 2) Both cities have columns with statues atop - the Angel of Independence in Mexico City and the Angel of Freedom in Paris. However, the document's author believes the proportions of Mexico City's column are better. 3) Other landmarks mentioned include the Palace of Fine Arts in Mexico City and the Opera House in Paris, but no details are provided about their current appearances.