Chapter 1
Cast iron and cobblestones
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Answer
Chapter 2
From factories to fine art
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Chapter 3
The battle to save SoHo
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Chapter 4
Hidden anomalies and street secrets
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YOUR GOAL
Master of Secrets of SoHo
Ch 1 · Cast iron and cobblestones
sonia Cast Iron and Cobblestones
These Belgian block streets, those hollow iron fronts, they're SoHo's secret style.

BETA
sonia Drag your spyglass over the pavement to discover the secrets hidden in SoHo's streets.
Fun Fact
Cast-iron magnets: Magnets will stick to many of SoHo's historic building facades because they are made of solid iron painted to look like stone.
Glossary
cast iron (noun)
A hard, relatively brittle alloy of iron and carbon that is cast in a mold. In 1973, New York designated twenty-six blocks of SoHo's historic facades as a protected district.
A hard, relatively brittle alloy of iron and carbon that is cast in a mold. In 1973, New York designated twenty-six blocks of SoHo's historic facades as a protected district.
Quiz
Why did cast-iron buildings in SoHo often collapse during intense 19th-century fires?
Quiz
What material makes up the largest collection of historic facades in NYC's SoHo neighborhood?
Quiz
Why did 19th-century builders mix sand into the paint used on SoHo's cast-iron buildings?
Quiz
What chemical element in the sidewalk vault glass caused it to change color over time?
Quiz
What are the rectangular granite paving stones in SoHo's streets historically called?


