Actual shape of environment is a result of the thousands-years old process of landscape metamorphoses from natural to cultured shape and social dimension. Development of agriculture brought the uprising of first human societies as well as the first technical works serving to the purpose of natural resource exploitation. Expressive advances of building technologies came particularly since the 19th century. New varieties of technical works occurred in towns and in locations with industrial production, extraction of raw materials and transportation. Landscape planning activities are closely connected with natural conditions, because each intervention more or less prejudices them. An assumption of planning of a technical work is to minimally destroy natural biological conditions and to introduce technical constructions to harmony with landscape in technical as well as aesthetic aspect. Contemporary and historical technical works form an individual atmosphere in landscape. They supply energy and intensity to the place, contribute to the landscape composition, symbolize the interconnection of two poles (environments) the natural with the artificial ones. Tendency to give aesthetic effectiveness to the landscape as a part of human environment, aims to accent its values, mode of its exploitation or ecological stage of landscape, brings to the picture of contemporary landscape besides technical works a great number of isolated works of art. They used to be a symbol of historical events (monument and memorials), complements of landscape functions, or a component of ecological and restorative arrangements, e.g. the land art works, which represent a new tendency of creative expression in open landscape.