The Avenue d'Iéna is a tree-lined avenue in the 16th arrondissement of Paris, running from the Trocadéro (Avenue Albert De Mun) to the Place de l'Étoile. Passing through Place d'Iéna, Place de l'Amiral de Grasse, Place de l'Uruguay and Place Richard de Coudenhove Kalergi on the way. It is named from the neighbouring bridge across the Seine, the Pont d'Iéna (itself named after the Battle of Iena). It has a length of some 1150 m and an average width of some 35 m.