Plumbing
Not unlocked yetComplete image 7 on the Technology book.
Rocketry
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Phonograph
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Retro Gaming
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Books
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Aqueducts
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Steam Power
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Airships
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Drones
Not unlocked yetComplete image 15 on the Technology book.
Cloud Computing
Not unlocked yetComplete image 16 on the Technology book.
Automobiles
Not unlocked yetComplete image 17 on the Technology book.
Cloning
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Urbanization
Not unlocked yetComplete image 19 on the Technology book.
Renewable Energy
Not unlocked yetComplete image 20 on the Technology book.
Technology
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Pride
Not unlocked yetComplete image 1 on the Flag book.
Antwerp
Not unlocked yetComplete image 2 on the Flag book.
Olympic
Not unlocked yetComplete image 3 on the Flag book.
South Africa
Not unlocked yetComplete image 4 on the Flag book.
Jolly Roger
Not unlocked yetComplete image 5 on the Flag book.
Hawaii
Not unlocked yetComplete image 6 on the Flag book.
United Kingdom
Not unlocked yetComplete image 7 on the Flag book.
Lifeguard Flags
Not unlocked yetComplete image 8 on the Flag book.
United Nations
Not unlocked yetComplete image 9 on the Flag book.