The Flamingo Las Vegas is considered haunted primarily due to its connection to mobster Bugsy Siegel, who built the hotel and was murdered shortly after its opening. Guests and visitors have reported paranormal experiences such as a shadowy figure at the foot of their bed, doors opening and closing on their own, disembodied whispers, and feelings of being grabbed. The most frequently cited location for hauntings is the memorial to Bugsy Siegel, located in a secluded garden maze near the Garden Wedding Chapel. The ghost of Bugsy Siegel, the infamous mobster who built the original Flamingo, is said to roam the property as a dark shadow. Paranormal activity is particularly concentrated around the memorial dedicated to Siegel, which is located in the hotel's garden maze. Guests have reported a range of ghostly experiences, including: A shadowy figure standing over their bed. Doors opening or closing by themselves. Disembodied whispers heard in rooms. Sensations of being pulled or grabbed, as reported in a TripAdvisor review of Room 735. Bugsy Siegel's ghost is believed to linger at the hotel he founded. His violent death on June 20, 1947, just months after the Flamingo opened, is a key factor in the haunting legend. Siegel was killed by mobsters, and his death ushered in a change in ownership at the Flamingo. The hotel has since tried to distance itself from its mob history, but tales of Siegel's spirit persist.