Far below the Brenner Pass, construction is underway on the Brenner Base Tunnel, the longest underground railway connection in the world, which cuts right through the heart of Europe’s Alps. We go inside to follow one of Europe’s largest work sites that will help connect Scandinavia to the mediterranean Sea and cut the passenger time on the ride between Austrian and Italy from 80 minutes to a mere 25 minutes A joint project between Italy, Austria and the EU, the Brenner Base Tunnel is actually two main tunnels, each 8.1 meters wide so train traffic runs only one way, with side tunnels every 333 meters and an exploratory tunnel for construction and maintenance. The new line runs almost straight and nearly horizontal between Innsbruck and Franzenfeste in Italy. The sharp curves, inclines and declines of the 150-year-old existing Brenner Railway will soon be a thing of the past.