Finnish authorities have built tunnels under the capital city over Russia invasion fears [Getty]
AN UNDERGROUND city is being prepared for habitation incase Russia invades Europe during a military exercise.
Hundreds of miles of tunnels underneath Helsinki, Finland, have been painstakingly constructed in the case of an emergency.
Nine million cubic metres of passageways will fit all 600,000 residents of the capital should there be an invasion.
View original post 227 more words