The wall complex - now almost hidden to the naked eye - is believed to date from a long era that also saw such constructions as the Great Wall of China and Hadrian's Wall.
'To the east of these walls is a fairly wide passage, which is limited at the mountainside by another series of walls, oriented west-east across the Katun valley,' he said.
But Russian women don’t only pay attention to what you do for them. Offer your seat in transport to elderly people and save a kitten from stray dogs.
Once I saw a man jump into sewage to save tiny ducklings that fell down a hatch – in the eyes of his girlfriend he was a real hero.
Building a career and getting a second degree often sounds more appealing than trying to find someone who will value their personality and freedom.
A Russian woman will be very independent in a relationship, and very stubborn, too.