City officials in the Finnish capital of Helsinki are grappling over the future shape of the city. At issue is the skyline, which for years has been dominated by a relatively low and even roofline of short buildings. But developers have been working on plans for much taller buildings. Nearly 50 towers are in the planning and pre-development stages, some climbing up to 40 stories tall. But city leaders aren’t so sure they want these big towers coming to town.