Each city was evaluated based on the top 10 attractions using over 70,000 real online reviews.
The second largest city in Poland, Krakow, has been recognized as the cleanest city in the world for 2025.
Meanwhile, the Hungarian capital Budapest has been named the dirtiest city in the world.
This conclusion was reached by analysts at the luggage storage company Radical Storage, who analyzed a hundred cities from the top 100 destinations ranking by Euromonitor. Each city was evaluated based on the top 10 attractions using over 70,000 real online reviews from the past 12 months. The cities were also checked for characteristics such as "clean" and "dirty."
Data analysis showed that Krakow is the cleanest city in the world with an impressive 98.5% positive reviews regarding cleanliness.
"Krakow's impeccable reputation is likely due not only to good street cleaning. Over the past decade, Poland as a whole has invested significantly in waste management systems and the maintenance of public spaces, as well as in a developed waste recycling infrastructure and public space upkeep," the authors of the study noted.
Interestingly, Krakow is not the only Polish city in the top ten cleanest: the capital city Warsaw ranked fourth with 97.8% positive reviews about cleanliness.
The 10 cleanest cities in the world:
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Krakow, Poland (98.5%).
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Sharjah, UAE (98.0%).
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Singapore (97.9%).
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Warsaw, Poland (97.8%).
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Doha, Qatar (97.4%).
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Riyadh, Saudi Arabia (96.9%).
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Prague, Czech Republic (96.4%).
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Muscat, Oman (96.4%).
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Dubai, UAE (96.3%).
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Fukuoka, Japan (96.3%).
