Here is 1 photo spot at Heumarkt for you.

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne

Heumarkt Subway Station, Cologne