The British Museum will display what it says is the world’s oldest surviving map of the stars in a major upcoming exhibition on the Stonehenge stone circle.

The 3,600-year-old “Nebra Sky Disc,” first discovered in Germany in 1999, is one of the oldest surviving representations of the cosmos in the world and has never before been displayed in the U.K., the London museum said Monday.

The 30 centimeter (12 inch) bronze disc features a blue-green patina and is decorated with inlaid gold symbols thought to represent the sun, the moon and constellations. The “World of Stonehenge” exhibition planned for next year will be the first time the disc has been loaned out from Germany for 15 years.

The U.K. is only the fourth country the disc has travelled to after it was discovered buried in the ground in eastern Germany. It will feature alongside an extremely rare 3,000-year-old sun pendant described by the British Museum as the most significant piece of Bronze Age gold ever found in Britain.