Prompt code:
A vibrant and colorful illustration celebrating World Cities Day. The title "World Cities Day" is prominently displayed in bold, modern letters. The date "31 October" is written below the title, with a globe in the background, symbolizing the unity of cities worldwide. Various iconic city landmarks are depicted, such as the Eiffel Tower, Big Ben, the Statue of Liberty, and the Sydney Opera House. They are connected by a network of colorful lines, representing the interconnectedness of global cities. The overall design is clean and modern, with a harmonious blend of diverse cityscapes., illustration
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