⌂
⚲
?
✕︎
clip:223602
clip:223602
clip:223602
clip:223602
clip:223602
clip:223602
clip:223602
clip:223602
clip:223602
hi
{"x":0,"y":0} to {"x":0,"y":0}
Copyright © details on Wikimedia Commons.
Bonn, Max-Planck-Institut für Mathematik (Vivatsgasse) -- 2016 -- 3993.jpg
▦