Adventure movies usually emphasise the mystery, romance, adventure, danger, and terror of the unknown. Common settings include a jungle or desert. Classic dangers include ferocious man-eating mammals and reptiles, hostile natives, deadly diseases, lost cities and crumbling temples, torrential rivers, waterfalls, whirlpools, and quicksand bogs, damsels in distress, evil emirs and treacherous tribal chieftains, and despicable white adventurers from the civilized world intent on exploiting the jungle, its animals, treasures, resources, and primitive native peoples. 