6. Château de Brissac, France

Château de Brissac, one of the most haunted castles in France, has a chilling history tied to murder and betrayal. The castle, built in the 11th century, was the site of a tragic murder where the wife of the lord was killed by her husband upon discovering her infidelity. Her ghost is said to roam the halls, giving the castle a spine-tingling reputation.
The remnants of its once-grand interior, combined with eerie legends, make it a terrifying spot for thrill-seekers.