#4 Kryziu Kalnas, The Hill of Crosses, Lithuania. Earlier Kryziu Kalnas was a ceremonial site for Lithuanians who died at war. The Soviet Union bulldozed it twice but the locals again rebuilt it even bigger stretching about 12 Km. Today, the number of crosses are over 100,000 on the hill.
#3 Leap Castle, Ireland. It is one of the most haunted castles in the world, known for its unseen forces and horror. Leap Castle has a background of historic slaughter, and was built on top of a torture pit.
#2 The Catacombs, Paris. The Parisian Catacombs is a gigantic ossuary and cemetery for approximately six million bodies in a small part of the ancient Mines of Paris tunnel network. The underground cemetery has become a tourist destination.
#1 Hoia Baciu Forest, Romania. Hoia Baciu Forest is known to be the Bermuda Triangle of Romania. The forest has a history of missing people, UFO sighting and several unexplained events. Quite Creepy.
Story Credits to Redditor