Fake Paris

                               
During the WW1 aerial bombarding was not precise because planes were not equipped with radar. In fact pilots had to solely depend on their sight. When they see what they believed to be the target they deployed bombs. Using this opportunity of human error Parisians at the time thought of saving their town. They built a fake Paris so that the pilots will bomb it instead of the actual one. It even had a faux Arc di Tromphe and Goud du Nord among the landmarks.
Fernand Jacopozzi who would later design the lighting system of the Eiffel tower even designed a lighting system which includes lights mimicking moving trains and working machinery at night. In the original plan there were 3 separate fake neighborhoods around the city. First located northeast of the city would replicate a train hub, second was on a bend of the river Saine which mimicked the city center third was east to the city with an industrial zone.

However in 1918 war came to an end before completion of the project and only few parts of the original plan were actually built; fake running train and some industrial buildings.