Italy
The McKittrick Brea Pit is part of a series of natural asphalt lakes in Kern County, California, among the most extensive in the state. These pits, formed from oil seepage during the Pleistocene, have trapped and preserved a rich fossil record of ancient animals and birds.
Listen to the audio guide for McKittrick Brea Pit Free on WIP — starts by itself when you arrive, even with the screen off