3600-2500 Malta Animal Relief of a bull and sow part of monumental structures from Tarxien, Malta. Maltese prehistory has been recalibrated to 3rd millennia BCE. The prehistoric Maltese cultures developed earlier and independently of the Egyptian pyramids or Stonehenge.
The Hypogeum in Hal-Saflieni, Paola, Malta, is a subterranean structure dating to the Saflieni phase in Maltese prehistory. Thought to be originally a sanctuary, it became a necropolis in prehistoric times. - http://www.oddee.com/item_96666.aspx