People visit the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

A woman takes photos at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

A couple takes wedding photos at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

A couple takes wedding photos at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

A couple takes wedding photos at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

A couple takes wedding photos at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

Colorful autumn leaves are seen at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)

Sunlight shines through red autumn leaves at the rooftop garden of the University of Warsaw in Warsaw, Poland on Oct. 13, 2025. In recent days, the garden's vegetation has taken on autumn colors, attracting many visitors. (Photo by Aleksy Witwicki/Xinhua)