London skyline poster with landmark letter typography

A professionally designed travel advertisement poster featuring the word 'LONDON' rendered in massive 3D architectural typography. Each letter is seamlessly integrated with an iconic landmark: 'L' as a classical column with royal crests, 'O' as the London Eye, 'N' formed by the towers and cables of Tower Bridge, 'D' as the clock tower of Big Ben, 'O' as the dome of St. Paul's Cathedral, and 'N' incorporating The Gherkin skyscraper. The scene includes a red double-decker bus and a telephone booth at the base for scale. The background is a clean, bright blue sky with soft clouds. The layout includes clean minimalist text at the top and bottom, such as 'DESTINATION SERIES' and 'VISIT LONDON', with a sleek, modern aesthetic.