Castles are some of the most iconic buildings found around the globe. These structures are created for specific purposes, acting as strongholds for military battles. They are also designed for both keeping unwanted guests out, as well as locking some people in. Corvin Castle located in Hunedoara, Romania is one of the most picturesque keeps on the entire globe. This castle holds a very dark history including inhumane torture, suicide, murder, and the legend that Vlad Tepes (Dracula himself) was held prisoner here for 7 long years within the 15th century.