There are many popular legends around the world, but some of the most well-known include:

King Arthur and the Knights of the Round Table - a legendary British king who, according to medieval stories, led the defense of Britain against Saxon invaders in the late 5th and early 6th centuries.

Robin Hood - a legendary outlaw who is said to have robbed the rich to give to the poor in medieval England's Sherwood Forest.

The Loch Ness Monster - a legendary creature said to inhabit Scotland's Loch Ness, often depicted as a large, dinosaur-like aquatic animal.

Paul Bunyan - a legendary lumberjack and folk hero in American folklore, known for his larger-than-life feats and adventures in the wilderness.

Atlantis - a mythical island civilization that is said to have been lost beneath the sea, first mentioned by the ancient Greek philosopher Plato.

Baba Yaga - a supernatural witch character from Slavic folklore, known for living in a house that stands on chicken legs and flying around in a mortar and pestle.

These legends have captured the imaginations of people for centuries and continue to be popular subjects in literature, art, and popular culture.