Bananas for Scale
Forbidden City

Photo from Wikimedia Commons

Forbidden City

The imperial palace complex at the heart of Beijing/World Landmarks

The Forbidden City (now the Palace Museum) in Beijing is the world's largest palace complex, home to Chinese emperors from 1420 to 1912. It covers 720,000 square meters and contains 980 surviving buildings with 8,704 rooms. The complex is surrounded by a 7.9 m high wall and a 52 m wide moat. The name 'Forbidden' reflects that no one could enter or leave without the emperor's permission. It took 14 years and reportedly one million workers to build.

Measurements

Total area720,000 m2
4.8 billionHuman thumbnails
8 tenthsAirport runways

72 hectares, world's largest palace complex

North-south length961 m
22,506Golf ball diameters
2 billionBlue light wavelengths

Along the central axis

East-west width753 m
753,000Poppy seeds
5,020Hot dogs
16.7Unrolled toilet paper rolls

Maximum width

Wall height7.9 m
3.6 hundredthsHoover Dam heights
29.6Dinner plates
4.6 quadrillionProton diameters

Surrounding perimeter wall

Moat width52 m
372 billionthsJupiter diameters
10.6Garage doors

Water-filled defensive moat

Wall perimeter3,420 m
34.2City block lengths
4.3 thousandthsFlorida lengths
9,771Spider web diameters

Total wall circuit

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