While cleanliness is subjective, London is generally perceived as cleaner than Paris in 2026 traveler surveys and urban maintenance reports. London benefits from a more decentralized "village" layout and a massive investment in street-cleaning "task forces" in high-traffic zones like Westminster and the City. You will find significantly more public trash bins in London, and the city has strict "Public Space Protection Orders" against littering and graffiti. In contrast, Paris—though architecturally more uniform and beautiful—often struggles with visible issues like overflowing bins, pervasive graffiti on historic facades, and the infamous "smell" in older Metro stations. Paris is much denser than London, which exacerbates its waste management challenges. However, Paris has launched the "Propreté" initiative in 2026 to modernize its cleaning fleet, attempting to bridge the gap with its British neighbor.