Revelers celebrate during fireworks marking the start of the New Year on Copacabana beach on January 1, 2017 in Rio de Janeiro, Brazil. Brazilian revelers traditionally dress in white to honor the New Year's holiday along with the Brazilian Goddess of the Sea- Iemanja. (Photo by Mario Tama/Getty Images)

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)

People leave a camp after a Peruvian police operation to destroy illegal gold mining camps in La Pampa, in the southern Amazon region of Madre de Dios, Peru August 11, 2015. Picture taken August 11, 2015. (Photo by Sebastian Castaneda/Reuters)

A Hindu devotee lies on the banks of river Ganges she worships the Sun god during the religious festival of Chhath Puja, amidst the spread of the coronavirus disease (COVID-19), in Kolkata, India on November 20, 2020. (Photo by Rupak De Chowdhuri/Reuters)

Grade 5 student Lovely Joy De Castro, 11, takes notes while attending an online class using a smartphone, as schools remain closed during the Coronavirus disease (COVID-19) outbreak, at Manila South Cemetery where she lives with her family in Makati City, Philippines, November 6, 2020. (Photo by Eloisa Lopez/Reuters)

A local helps a reveler with his costume made from beer and soda cans during the “Bloco da Latinha” street party Carnival parade in Madre de Deus, Brazil, Sunday, February 11, 2024. (Photo by Eraldo Peres/AP Photo)

Azerbaijan's Mariya Stadnik (R) wrestles Mongolia's Otgonjargal Dolgorjav (L) in their women's freestyle 50kg wrestling quarter-final match at the Champ-de-Mars Arena during the Paris 2024 Olympic Games, in Paris on August 6, 2024. (Photo by Punit Paranjpe/AFP Photo)

Team GB’s Katarina Johnson-Thompson in action during the women’s heptathlon shot put, where she recorded a personal best at the Paris 2024 Olympic Games at Stade de France in Saint-Denis, north of Paris, on August 8, 2024. (Photo by David Levene/The Guardian)