The horseshoe is said to be particularly auspicious and is often displayed in homes to protect it and provide good fortune to the family that lives within. If the horseshoe is hanging with its ends up above a doorway, it will bring good luck. If down at the foot of the door it can protect the home from evil spirits. In Europe, where horses were important tools for transportation, they were usually buried with their heads toward home, which was considered to be the best place to go. So, over the doorways of houses where horses had been killed in battles, the bodies were left with their heads toward their homes, in order that good might follow them. This is why soldiers who have died on battlefields are called "horseshoers." In the United States, where horses are used mainly for entertainment rather than transportation, it is not common practice to leave horseshoes as grave markers. However, if you encounter one while hiking or walking your dog, it is acceptable to take it as a memorial gift. Horseshoes are also used in witchcraft rituals to call upon the power of the horse-riding gods. Finally, a horseshoe over a door means that someone who uses this method to protect their house is being very superstitious.