Megaliths were large, single stones used to create structures, interlocking with other stones (or megaliths), without use of cement or other bonding matters, used particularly in the Neolithic period. Found all across Europe, Megaliths are thought to have been used mostly as a site for burials; funery artifacts and human remains have been discovered in several locations through Atlantic Europe. There are also many theories regarding these structures, some thought to have been used for astrological viewing, much like observatories, or as places used for religious worship. These structures mark human`s evolution into more creative thinking, and their need for more elaborate burials and places of worship.