Skyscrapers stand on the skyline in the La Defense business district, viewed from the Ballon Generali de Paris hot air research balloon during air quality checks, over the Park Andre-Citroen in Paris, France, April 29, 2025. REUTERS/Benoit Tessier
Skyscrapers stand on the skyline in the La Defense business district, viewed from the Ballon Generali de Paris hot air research balloon during air quality checks, over the Park Andre-Citroen in Paris, France, April 29, 2025. REUTERS/Benoit Tessier