The World Trade Center slurry wall survived the September 11 attacks to become an iconic reminder of a nation's loss and resolve. Test your knowledge of this unique structure with our quiz.
Question 1 of 20
When was the World Trade Center slurry wall built?
Question 2 of 20
What was the purpose of the slurry wall?
Question 3 of 20
Where was the slurry trench underground wall-building method developed?
Question 4 of 20
When was the slurry trench method developed?
Question 5 of 20
Where was the first proposed location of the World Trade Center?
Question 6 of 20
What organization built the World Trade Center?
Question 7 of 20
How thick is the original World Trade Center's slurry wall?
Question 8 of 20
What were the ingredients of the slurry used in the slurry trench?
Question 9 of 20
The consistency of the slurry is usually compared to what?
Question 10 of 20
The site of the World Trade Center was what sort of land?
Question 11 of 20
What was the name of the neighborhood where the World Trade Center was built?
Question 12 of 20
Where did the clay used in the slurry wall come from?
Question 13 of 20
What was the purpose of the slurry used in the slurry trench dug by the World Trade Center's builders?
Question 14 of 20
How deep was the slurry trench dug?
Question 15 of 20
After the slurry trench was finished, what was pumped into the trench?
Question 16 of 20
How much was budgeted to preserve and restore the slurry wall for the September 11 museum?
Question 17 of 20
How much of the original slurry wall was included in the museum project?
Question 18 of 20
What now supports the slurry wall from the interior?
Question 19 of 20
What was applied to the slurry wall's surface to preserve it for museum visitors?
Question 20 of 20