Sosnowska K21

K21 is one of my favourite art museums.  It keeps bringing me back to Düsseldorf every year.  Uwe Kiessler repurposed the former Ständehaus, which was reopened in 2002 to exhibit contemporary art including the recent large-scaled installation Die Treppe by Monika Sosnowska:

The magnificent glazed domed roof of K21: