It’s amazing, and slightly unbelievable, that the cities we’ve become so used to living in didn’t actually look this way decades ago. There’s nothing quite like holding up an old photograph in the same place it was captured years earlier, hoping to spot something similar, but seeing an entirely new world. Interestingly enough, some cities simply built around their historic buildings, while others completely revamped, introducing shiny new skyscrapers and high-rise blocks. Either way, these transformations have been truly extraordinary. To celebrate them, we’ve compiled this list of 25 before-and-after photos of some of the world’s most famous cities, proving just how much they’ve changed over time.

© Photo: Urban Redevelopment Authority website

© Photo: japanairraids.org

© Photo: Sam Ho

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