Season 18

Video thumbnail: Secrets of the Dead Building Notre Dame

Secrets of the Dead

Building Notre Dame

Follow an in-depth investigation into the centuries-long construction of Notre Dame.

Building Notre Dame

Video thumbnail: Secrets of the Dead Galileo's Moon

Secrets of the Dead

Galileo's Moon

Join experts as they examine an alleged proof copy of Galileo’s “Sidereus Nuncius.”

Galileo's Moon

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