"Bonn leuchtet" -- "Bonn Shines" -- is the name of an annual event in early November during which some of Bonn's public buildings (and city streets and trees) are colorfully illuminated at night. Here are a few impressions from this year's iteration:
Old City Hall (and Market Place):
Sterntor (the only remaining medieval gate / remnant of city wall):
A bit of fun fair atmosphere (thankfully not too much, though):
Main Post Office and statue of Beethoven:
... aaand Bonn University (with Old City Hall in the background):