In London, controversy is erupting over "The Shard." In Paris, new tall buildings will soon join Tour Montparnasse in fueling controversy. In St. Petersburg and Liverpool, UNESCO has threatened de-listing of world monument status over tall building projects. What's the fuss? Is it just a matter of stylistic preference? Or are there other issues about tall buildings that we should pay more attention to? Join members of the Council for European Urbanism and others to review the evidence.