Here's a fun fact about le Arc de Triomphe: in 1920, the French decided to honor the lives lost in WWI by lighting the first eternal flame in Western Europe. Every year, on November 11, a ceremony is held at the Arc de Triomphe, in memory of the lives sacrificed during the world war. Then, comically enough, in 1998, a drunken Mexican football hooligan extinguished the flame by....umm..urinating on it...