As the cathedral reopens its doors this Sunday after a massive $737 million restoration project, here’s an up-close look at how three American artisans who were part of this rare moment in history.

Will Gusakov from Vermont and Hank Silver from Massachusetts worked with the group "Carpenters Without Borders." They employed the same techniques that were ...

Hank Silver works on restorations at Notre Dame cathedral in Paris. (Joel Lawrence / NBC News) However, 2,000 Oak trees were sourced from forests around Europe for the rebuild.

After a fire ravaged Notre Dame Cathedral five years ago, Hank Silver traveled to Paris to use his carpentry skills as a member of Carpenters Without Borders to help repair the famous structure.

For the past few years, people have been tirelessly working to restore the historic Notre Dame Cathedral after part of the Paris landmark burned down five years ago. The tragedy is seared in the ...

After a fire ravaged Notre Dame Cathedral five years ago, Hank Silver traveled to Paris to use his carpentry skills as a member of Carpenters Without Borders to help repair the famous structure.