About the Large Hadron Collider, which started at CERN, they know everything, but few people know that the Soviet Union was also a collider. It is located in Protvino, Moscow Region, construction began in 1960. Later, in 1983, construction began skoritelno-storage complex project with a beam energy of 3000 GeV (the proton - proton collider in superconducting magnets). As a result, for 11 years, it was built underground tunnel length of 21 km (which is more than 2 km Circle Line of the Moscow Metro), an inner diameter of 5 kilometers. In 1994, construction was completed and started trial, but, unfortunately, the funding was soon over, and the project had to be frozen. Now all that is left of the buildings, guarding grandmother-watchman and a few dogs. Very interesting photos - then.