Mystique (noun)

1. An air of mystery or a sense of the unknown that surrounds a person or thing.
2. A sense of awe or reverence for something.

Origin:

From french mystique, from latin mysticus "mystic", from greek mystikos, from mystēs "initiate", from myein "to close the eyes or mouth, initiate into secret rites".

Examples:

1. The old castle had a certain mystique about it.
2. The city had a mystique that drew people from all over the world.
3. The mystique of the mountain made it a popular destination for climbers.
4. He had a certain mystique about him that made people want to follow him.
5. The mystique of the ancient ruins made them a popular tourist attraction.