a monument with writing on the side of it

Column 21 of the Southern Pillar of the Arc de Triomphe. Per Wikipedia, there are "660 names inscribed under the Arc de Triomphe, in Paris. Most of them represent generals who served during the French First Republic (1792–1804) and the First French Empire (1804–1815)." See: https://en.wikipedia.org/wiki/Names_inscribed_under_the_Arc_de_Triomphe