A medieval French castle dripping with history — and possibly Napoleon’s hidden gold — is for sale, asking $3.8 million.

Deep in the French countryside stands the mysterious Abandoned Castle of Light, a once-grand estate now left to decay. With ornate chandeliers, towering stained-glass windows, and golden-hued halls, ...

Many historical castles in Europe and beyond are abandoned and unsold, despite low prices. High restoration and maintenance costs, along with strict heritage laws, deter buyers. Castles like Château ...