Leica M10
Zeiss Distagon 18 ZM
Vienna, Austria

Karlsplatz is a town square on the border of the first and fourth districts of Vienna. It is one of the most frequented and best connected transportation hubs in Vienna. The Karlskirche is located here. The first district can be reached either by subway or via Operngasse. This is a photo of the old subway station that the city preserved.