Frankfurt am Main

Caspar and I had a 6km walk through the Odenwald. Close to where I parked my car we had this view. Frankfurt was over 40km/25m away, as a crow flies. Obviously we had some rain lately, hence the air was clear enough to see so far. Behind Frankfurt you can see the Taunus mountains, 60km.
Why is the title "Frankfurt am Main"? Because that's the official name. And there is another Frankfurt in Germany, called Frankfurt an der Oder.