VIDEO: Conquer nature. The most impressive viaducts
Very often nature tests people. From time to time we have to conquer and subjugate the elements. When men mastered construction of bridges, water obstacles have ceased to be a problem for humanity. However, what to do if a town is behind a pit, flatland or gorge? All-too-common "bridge" on pillars cannot be constructed everywhere. In such cases people resort to erecting viaducts, some of which are true works of art.