Random things I saw in Frankfurt

I realize Frankfurt was so last week -- it's already three cities ago -- but here's a last set of pictures before I move on. From the top left, the tower of the Alte Nikolaikirche in the Römer district, one of the bridges over the Main, a platform at the train station, and a couple shopping for Birkenstocks that for unknown reasons now come in every color of the Dayglo rainbow.