Top 10 Greenest Cities Revealed: Oslo Leads Global Urban Sustainability

• Oslo, Norway, ranks first with 95% of residents near green areas and Europe's cleanest air.
• Vilnius, Lithuania, named European Green Capital 2025, dedicates 61% of its territory to green space.
• Helsinki, Finland, known for 'wild urbanism,' is the world's most sustainable travel destination for 2024-2025.
• Vienna, Austria, boasts over half its area as green space, blending imperial heritage with environmental preservation.
• Singapore, the 'City in Nature,' features extensive skyrise vegetation and a vast park connector network.