Alphabetic Landmarks: A World Tour in Low Poly

A fun Low poly cartoon prompt for Nano Banana. I don't like hard coding but sometimes it's better. 

[Top Left: "A" for Amsterdam; the letter 'A' forms the structure of the city, with canals flowing through its legs, a tiny paper Anne Frank House nestled inside, and a blocky Rijksmuseum forming the crossbar]
[Top Right: "B" for Beijing; the letter 'B' encloses the Forbidden City, with the Great Wall snaking along its top curve and a tiny paper Tiananmen Square in its lower loop]
[Bottom Left: "C" for Cairo; the letter 'C' is shaped like the Nile, with tiny paper pyramids and the Sphinx on its outer bank and a blocky Al-Azhar Mosque on its inner bank]
[Bottom Right: "D" for Delhi; the letter 'D' is built from Mughal architecture, with the Red Fort forming its straight edge and the Qutub Minar standing tall inside its curve]
Style: Low poly cartoon, Blender, minimalist design, clean lines, solid colors, isometric perspective, high-resolution render.