Malta and Gozo are home to seven megalithic temples, all of which are designated as world heritage sites by UNESCO. These megalithic temples date back 5500 years ago and are the oldest free-standing stone structures in the world, even older than the Stonehenge and the Pyramids. You will first drive to Ghar Dalam. The history of the cave and that of the islands can be decoded from Ghar Dalam's stratigraphy. The lowermost layers, more than 500,000 years old, contained the fossil bones of dwarf elephants, hippopotami and micro-mammals. You will then visit Hagar Qim & Mnajdra Temples. The megalithic complex of Hagar Qim is located atop a hill on the southern edge of the Island, on a ridge capped in soft globigerina limestone. All exposed rock on the island was deposited during the Oligocene and Miocene periods of geological time.