An aerial view of the 600-year-old castle ruins in Vannes. Screengrab from Inrap's YouTube video Vannes is along the western coast of France and about 300 miles southwest of Paris. Google ...

Archaeologists had known for years that a hotel in Vannes, France, was built on the site of a medieval ... About 10 feet down, archaeologists found the top of the castle ruins. The elaborate stone ...