Which river flows through Vienna, Austria?

Danube

What character did Emilia Clarke portray in "Game of Thrones"? Which Native American tribe participated in the first Thanksgiving with the Pilgrims In Poland, what Christmas symbol is traditionally made from straw and believed to bring prosperity during the coming year? What is the culinary term for thickening a sauce by reducing liquid through cooking? Which band is famously known for their album "Rumours"?