A UNESCO World Heritage site, Nesvizh Castle was the seat of the powerful Radziwiłł family for centuries. Its most enduring legend is the “Black Lady,” believed to be the spirit of Barbara Radziwiłł, who died under mysterious circumstances in the 16th century. Visitors and staff claim to see her spectral form gliding through the halls in black robes, often accompanied by sudden cold air and the smell of roses. Some say her restless spirit is tied to her tragic love story with King Sigismund II Augustus of Poland.