The historic stock exchange in Copenhagen, one of the oldest and most iconic buildings in the Danish capital, was engulfed by a major fire on Tuesday, causing its spire to collapse in the flames. Heavy smoke and fire rose from the building as Copenhagen police cordoned off the area around the Old Stock Exchange in the centre of the city. Parts of the roof have collapsed and the fire is not yet under control. Around 120 firefighters and around 60 members of the armed forces were deployed to the scene, Danish media reported. The blaze has so far torn through around half of the building, the fire…