In 1936, French engineer André Basdevant proposed an ambitious project to make the second floor of the Eiffel Tower accessible by car.
The plan concerned setting up a spiral roadway that might permit vehicles to ascend to the second degree, offering a ...
![Musée Des Confluences, Coop-Himmelblau. Completed December 2014. [OC]](https://i0.wp.com/b.thumbs.redditmedia.com/TpOdsjyNHvM3YsDD_e4rjsc5BtkWD8uh2UL1UDwhIAs.jpg?w=360&resize=360,180&ssl=1 "Musée Des Confluences, Coop-Himmelblau. Completed December 2014. [OC]")
