The term landscape aesthetics is meant to indicate the pleasure people gain from seeing, visiting, or even knowing of the existence of certain landscape features. Landscapes have distinct values in themselves which can be of different types. People may be interested just in ensuring the continuing existence of certain landscapes, habitats or ecosystems, even if they are not benefiting from them directly in any other way. However, landscapes can also have more direct use values, exploited through activities such as ecotourism (visits to places with unique flora and fauna) or agritourism (visits to landscapes where humans have practiced agriculture in ways that result in interesting scenery).