The Toyota FCV Plus fuel cell concept car is displayed on media day at the Paris auto show, in Paris, France, September 29, 2016. (Photo by Benoit Tessier/Reuters)

It is already one of the world’s most iconic cities, but this incredible collection shows how much Paris has changed over the course of the past century. The collection, by French photographer Julien Knez, shows Paris in the 1940s against a backdrop of how the same places look today. Knez says he put the striking collection together to celebrate the 71st anniversary of the city’s liberation from Nazi control in August 1944. Here: Soldiers outside the Hotel De Ville in the 1940s. (Photo by Julien Knez/Caters News)

A Mercedes-Benz 300 SL “Gullwing” Coupe is displayed during an exhibition of vintage and classic cars by Bonhams auction house at the Grand Palais during the Retromobile week in Paris, France, February 8, 2017. (Photo by Benoit Tessier/Reuters)

The Mercedes Vision EQ Silver Arrow is displayed at the Auto show in Paris, France, Tuesday, October 2, 2018, 2018. The one-seater vehicle is an homage to the record-breaking W 125 car from 1937. (Photo by Thibault Camus/AP Photo)

Soldier wear face masks prior to the Bastille Day parade Tuesday, July 14, 2020 on the Champs Elysees avenue in Paris. France are honoring nurses, ambulance drivers, supermarket cashiers and others on its biggest national holiday Tuesday. Bastille Day's usual grandiose military parade in Paris is being redesigned this year to celebrate heroes of the coronavirus pandemic. (Photo by Christophe Ena/AP Photo/Pool)

Paris Fashion Week, Spring/Summer 2014 Haute Couture collection by Charlie Le Mindu. (Photo by Yoan Valat/EPA)

A model presents a creation by French designer Jean Paul Gaultier as part of his Spring/Summer 2015 women's ready-to-wear collection during Paris Fashion Week September 27, 2014. (Photo by Gonzalo Fuentes/Reuters)

A model presents a creation by designers Humberto Leon and Carol Lim as part of their Autumn/Winter 2015/2016 women's ready-to-wear collection for Japanese fashion house Kenzo during Paris Fashion Week March 8, 2015. (Photo by Gonzalo Fuentes/Reuters)