The Tower of London, London
William the Conqueror had the castle built in 1078 and it has witnessed several executions and tortures for hundreds of years. It’s not a surprise that it is considered as one of the most haunted places in the UK. Even without knowing about the paranormal activities going on inside the castle, your hair will raise knowing that several horrific deaths occurred here. While there are several many encounters reported here, the most popular is that of the ghost of King Henry VIII’s wife Anne Boleyn. She was beheaded and her headless ghost is seen wandering, especially on the spot where she died.