No.5: The Alamo (United States)

Source : WIKIMEDIA COMMONS
The Alamo in San Antonio, Texas, was the site of a brutal battle in the 1836 Texas Revolution, where about 200 defenders, including Davy Crockett, were killed. To this day, visitors report sightings of ghostly soldiers within the fort.

Source : Planet-Life
Uniformed apparitions are said to patrol the grounds, with phantom gunshots and battle cries often heard, especially at night. In the library, books have been seen falling or turning pages by themselves. Many visitors describe a heavy, oppressive atmosphere—one that carries the weight of tragedy still echoing through time.
No.4: Leap Castle (Ireland)

Source : WIKIMEDIA COMMONS
Leap Castle, built in the 13th century, is feared as the most haunted castle in Ireland. The eerie cry of a “Banshee,” a death-predicting spirit, is said to echo through its halls, where numerous murders have occurred. In the infamous “Bloody Chapel,” a priest was killed during mass, and the bloodstains reportedly remain on the stone walls.
Ghostly sightings include medieval knights, the murdered priest, and a young girl said to have died as the lord’s daughter. Guests have reported hearing clanking armor, whispered prayers, and the cries of children, leaving many unable to sleep. The castle now operates as a hotel but remains a top destination for ghost hunters worldwide.