13 historic monuments, puzzles which are still not solved

Angkor Wat, Cambodia

The Europeans are not aware of the complex to the XIX century. And you learn to doubt that it was built Rouge. Masonry is very dense: sometimes you will not find the seams. Stones are extremely smooth. Hold designs under its own weight. The ensemble of 200 temples planned so that the approaching from either side of the traveler sees only three of them. Especially stunning views of the rainy season: wide moat filled with water, making Ankgor Wat-like island in the middle of the vast ocean.