Among the pictures my dad sent home to his father from Cologne, Germany in 1946 are significant number of pictures of bombed out Cologne.
Here is a sampling of the pictures dad sent home. Most of them are centered around the cathedral.
More from Wiki:
During World War II, Cologne was a Military Area Command Headquarters (Militärbereichshauptkommandoquartier) for the Military District (Wehrkreis) VI of Münster.
Cologne was under the command of Lieutenant-General Freiherr Roeder von
Diersburg, who was responsible for military operations in Bonn, Siegburg, Aachen, Jülich, Düren, and Monschau. Cologne was home to the 211th Infantry Regiment and the 26th Artillery Regiment.
During the Bombing of Cologne in World War II, Cologne endured 262 air raids by the Western Allies,
which caused approximately 20,000 civilian casualties and almost
completely wiped out the centre of the city. During the night of 31 May
1942, Cologne was the target of “Operation Millennium“, the first 1,000 bomber raid by the Royal Air Force
in World War II. 1,046 heavy bombers attacked their target with 1,455
tons of explosives, approximately two-thirds of which were incendiary.
This raid lasted about 75 minutes, destroyed 600 acres (243 ha) of
built-up area, killed 486 civilians and made 59,000 people homeless. By
the end of the war, the population of Cologne had been reduced by 95
percent. This loss was mainly caused by a massive evacuation of the
people to more rural areas. The same happened in many other German
cities in the last two years of war. By the end of 1945, however, the
population had already recovered to approximately 500,000.
By the end of the war, essentially all of Cologne’s pre-war Jewish population of 11,000 had been deported or killed by the Nazis. The six synagogues of the city were destroyed. The synagogue on Roonstraße was rebuilt in 1959.
Cologne Cathedral and bridge today.