Isometric Miniature City Diorama Rising from a Vintage Paper Map

Isometric miniature diorama of Lisbon on a vintage paper map, with terracotta roofs, a hilltop castle, a riverside tower, a red suspension bridge and boats

{
"description": "Create a highly detailed, photorealistic miniature diorama style isometric map of  placed on a vintage textured paper map.",
  "perspective": {
    "type": "isometric",
    "angle": "45 degree top down",
    "look": "macro photography with tilt-shift miniature effect"
  },
  "geography": {
    "shape": "follows real geographic shape of ",
    "": {
      "oversized": true,
      "dominant": true,
      "primary_focus": "monuments",
      "secondary_elements": "smaller and simplified"
    },
    "architecture": "ultra detailed miniature",
    "roads": "selective",
    "greenery": true,
    "water_bodies": true,
    "terrain": true,
    "materials": ["stone", "wood", "concrete", "glass", "foliage"]
  },
  "lighting": {
    "type": "soft cinematic daylight",
    "effects": ["natural shadows", "warm highlights", "subtle atmospheric depth"]
  },
  "water": {
    "rivers": true,
    "coastlines": true,
    "depth_gradients": "smooth",
    "reflections": "gentle"
  },
  "": {
    "type": "old world cartographic paper",
    "features": ["visible grid lines", "paper grain", "printed place names"]
  },
  "focus": {
    "sharp_on_": true,
    "edge_falloff": "gentle"
  },
  "quality": {
    "museum_quality": true,
    "handcrafted_diorama_realism": true,
    "ultra_high_resolution": true
  },
  "background": {
    "color": "clean pure white",
    "restrictions": ["no floating text", "no logos", "no watermarks", "no futuristic or cartoon elements"]
  },
  "aspect_ratio": "4:5"
}

{
"description": "Create a highly detailed, photorealistic miniature diorama style isometric map of Lisbon placed on a vintage textured paper map.",
  "perspective": {
    "type": "isometric",
    "angle": "45 degree top down",
    "look": "macro photography with tilt-shift miniature effect"
  },
  "geography": {
    "shape": "follows real geographic shape of Lisbon",
    "landmarks": {
      "oversized": true,
      "dominant": true,
      "primary_focus": "monuments",
      "secondary_elements": "smaller and simplified"
    },
    "architecture": "ultra detailed miniature",
    "roads": "selective",
    "greenery": true,
    "water_bodies": true,
    "terrain": true,
    "materials": ["stone", "wood", "concrete", "glass", "foliage"]
  },
  "lighting": {
    "type": "soft cinematic daylight",
    "effects": ["natural shadows", "warm highlights", "subtle atmospheric depth"]
  },
  "water": {
    "rivers": true,
    "coastlines": true,
    "depth_gradients": "smooth",
    "reflections": "gentle"
  },
  "map_base": {
    "type": "old world cartographic paper",
    "features": ["visible grid lines", "paper grain", "printed place names"]
  },
  "focus": {
    "sharp_on_landmarks": true,
    "edge_falloff": "gentle"
  },
  "quality": {
    "museum_quality": true,
    "handcrafted_diorama_realism": true,
    "ultra_high_resolution": true
  },
  "background": {
    "color": "clean pure white",
    "restrictions": ["no floating text", "no logos", "no watermarks", "no futuristic or cartoon elements"]
  },
  "aspect_ratio": "4:5"
}

cinel made the replacements above to generate the example image.

Model

2 credits for members at 1K, 4 with daily credits. Ratio 4:5.

PhotorealCinematicIsometricArchitectureCityGridratio 4x5text only

Details

Category	Infographics & UI
Aspect ratio	4:5
Input	Text only
Example generated with	GPT Image 2.5
Recommended models	GPT Image 2.5, Nano Banana Pro, GPT Image 2
Original author	@Just_sharon7 · Original post on X
Original model	nanobanana

Why this prompt works

Type a city name and this JSON builds a tilt-shift miniature of it, rising out of an old cartographic paper map with grid lines and printed place names: oversized landmarks, simplified streets, greenery, rivers and coastline, soft cinematic daylight. We filled it with Lisbon. The result is charming and instantly recognisable as Lisbon in spirit: terracotta roofs, a hilltop castle, a domed church, a riverside tower, a red suspension bridge and boats on the water, with 'LISBON' and 'ATLANTIC OCEAN' lettered on the map. Treat it as a souvenir illustration rather than a map: the city's shape and landmark positions are compressed and rearranged. Great for travel content and tourism posters.

How to adapt it

Variable	What it changes	Examples
[CITY/LOCATION]	the city	Lisbon, Kyoto, Chengdu
landmarks	how prominent monuments are	oversized and dominant
map_base	base map style	old-world cartographic paper, nautical chart