The 700-year-old Fondaco dei Turchi was a warehouse for the merchants of Constantinople, now the Natural History Museum.
The only place that could be re-purposed as the Natural History Museum was the 700 year old Fondaco dei Turchi.
mnli hypothesis: The only place that could be re-purposed as the Natural History Museum was the 700 year old Fondaco dei Turchi. premise: The 700-year-old Fondaco dei Turchi was a warehouse for the merchants of Constantinople, now the Natural History Museum.