Detour ahead: Le Gallerie is a twin tunnel-turned-exhibition space in Italy's Dolomite Mountains. (Photography by Pierluigi Faggion)

New York’s celebrated High Line may have turned an old rail trestle into a park, but the Northern Italian city of Trento has one-upped Manhattan, reclaiming two 1,000-foot-long tunnels in the Dolomite Mountains as an experimental history museum—and a fascinating example of the reuse of abandoned infrastructure. Read More