Metro tram operator Uestra has invited world-famous designers and architects to enhance the looks of the system. The 'Busstops' art project of 1992 resulted in nine remarkable bus and tram stops at street level
[uestra.de (PDF)]. Jasper Morrison designed trains in 1997, and Uestra's headquarters is a twisted cuboid by Frank O Gehry.
Photo: Kr÷pcke station from 1975, once dreary, in 2000 completely refurbished with designs by Massimo Iosa Ghini.