Beauty is a characteristic of a person, place, object or idea that provides a perceptual experience of pleasure, meaning or satisfaction. Beauty is studied as part of aesthetics, sociology, social psychology and culture. As a cultural creation, beauty has been extremely commercialized. An "ideal beauty" is a person who is admired, or possesses features widely attributed to beauty in a particular culture. A number of historical individuals have become icons of beauty. For example, women like Cleopatra VII, Helen of Troy and Marilyn Monroe.