Retro Mid-Century Travel Poster

Design a vertical retro mid-century travel poster of [city name] showcasing [landmark]. Stick to a tight 3-color scheme: cream-toned paper background, black technical line drawing, plus one [accent color] accent.
Aesthetic: minimalist isometric top-down aerial perspective with very fine cross-hatching and silkscreen print grain.
Color rules: fill the entire sky in flat solid [accent color], add small [accent color] touches on rooftops or street details. Zero gradients allowed.
Typography: large bold sans-serif "[city name]" at the top in cream, with the city's name in its native language set smaller in cream beneath it.