Orientation is one of the most important parameters of any construction to determine which is possible even if the construction itself does not exist any longer. The ancient city or temple from which the foundation remained exactly oriented to the sides of the world is still an excellent reference and can successfully carry out, for example, navigation functions. But only balloonists or cosmonauts will be able to use them. Jim Alison in his article about the laws in the location of the ancient historical objects describes the line passing through the Easter Island and the row of other famous places. Among them - Filitosa, Hattusa, Constantinople , which was chosen as the second point needed for building of orthodromy. But Rome is a great city, and for the specific point for drawing the line was accepted an obelisk, which stands on the square before the cathedral of St. Peter in Vatican. READ MORE...